Home / 743,248.20-1,026,108.12-489,337.56

Finding the Fourth Proportional to 743,248.20, 1,026,108.12 and 489,337.56

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Solution

The fourth proportional to 743,248.20, 1,026,108.12 and 489,337.56 is: 675,566.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,248.20 : 1,026,108.12 = 489,337.56 : x
  2. Step 2: Convert to fraction form
    743,248.20/1,026,108.12 = 489,337.56/x
  3. Step 3: Cross multiply
    743,248.20x = 1,026,108.12 × 489,337.56
  4. Step 4: Simplify right side
    743,248.20x = 502,113,243,736.99
  5. Step 5: Solve for x
    x = 502,113,243,736.99/743,248.20
  6. Step 6: Final answer
    x = 675,566.04

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.