Home / 657,787.32-907,746.51-355,981.32

Finding the Fourth Proportional to 657,787.32, 907,746.51 and 355,981.32

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Solution

The fourth proportional to 657,787.32, 907,746.51 and 355,981.32 is: 491,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,787.32 : 907,746.51 = 355,981.32 : x
  2. Step 2: Convert to fraction form
    657,787.32/907,746.51 = 355,981.32/x
  3. Step 3: Cross multiply
    657,787.32x = 907,746.51 × 355,981.32
  4. Step 4: Simplify right side
    657,787.32x = 323,140,794,536.55
  5. Step 5: Solve for x
    x = 323,140,794,536.55/657,787.32
  6. Step 6: Final answer
    x = 491,254.22

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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.