Home / 743,585.43-1,026,064.59-421,226.49

Finding the Fourth Proportional to 743,585.43, 1,026,064.59 and 421,226.49

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Solution

The fourth proportional to 743,585.43, 1,026,064.59 and 421,226.49 is: 581,245.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,585.43 : 1,026,064.59 = 421,226.49 : x
  2. Step 2: Convert to fraction form
    743,585.43/1,026,064.59 = 421,226.49/x
  3. Step 3: Cross multiply
    743,585.43x = 1,026,064.59 × 421,226.49
  4. Step 4: Simplify right side
    743,585.43x = 432,205,585,758.99
  5. Step 5: Solve for x
    x = 432,205,585,758.99/743,585.43
  6. Step 6: Final answer
    x = 581,245.37

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Double scale
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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.