Home / 743,587.68-1,026,067.71-421,228.74

Finding the Fourth Proportional to 743,587.68, 1,026,067.71 and 421,228.74

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Solution

The fourth proportional to 743,587.68, 1,026,067.71 and 421,228.74 is: 581,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,587.68 : 1,026,067.71 = 421,228.74 : x
  2. Step 2: Convert to fraction form
    743,587.68/1,026,067.71 = 421,228.74/x
  3. Step 3: Cross multiply
    743,587.68x = 1,026,067.71 × 421,228.74
  4. Step 4: Simplify right side
    743,587.68x = 432,209,208,637.99
  5. Step 5: Solve for x
    x = 432,209,208,637.99/743,587.68
  6. Step 6: Final answer
    x = 581,248.48

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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.