Home / 717,262.32-989,824.86-430,787.28

Finding the Fourth Proportional to 717,262.32, 989,824.86 and 430,787.28

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Solution

The fourth proportional to 717,262.32, 989,824.86 and 430,787.28 is: 594,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,262.32 : 989,824.86 = 430,787.28 : x
  2. Step 2: Convert to fraction form
    717,262.32/989,824.86 = 430,787.28/x
  3. Step 3: Cross multiply
    717,262.32x = 989,824.86 × 430,787.28
  4. Step 4: Simplify right side
    717,262.32x = 426,403,959,115.78
  5. Step 5: Solve for x
    x = 426,403,959,115.78/717,262.32
  6. Step 6: Final answer
    x = 594,488.16

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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.