Home / 453,922.60-680,981.10-138,411.40

Finding the Fourth Proportional to 453,922.60, 680,981.10 and 138,411.40

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Solution

The fourth proportional to 453,922.60, 680,981.10 and 138,411.40 is: 207,646.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,922.60 : 680,981.10 = 138,411.40 : x
  2. Step 2: Convert to fraction form
    453,922.60/680,981.10 = 138,411.40/x
  3. Step 3: Cross multiply
    453,922.60x = 680,981.10 × 138,411.40
  4. Step 4: Simplify right side
    453,922.60x = 94,255,547,424.54
  5. Step 5: Solve for x
    x = 94,255,547,424.54/453,922.60
  6. Step 6: Final answer
    x = 207,646.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.