Home / 749,640.34-1,124,151.17-287,948.53

Finding the Fourth Proportional to 749,640.34, 1,124,151.17 and 287,948.53

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Solution

The fourth proportional to 749,640.34, 1,124,151.17 and 287,948.53 is: 431,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,640.34 : 1,124,151.17 = 287,948.53 : x
  2. Step 2: Convert to fraction form
    749,640.34/1,124,151.17 = 287,948.53/x
  3. Step 3: Cross multiply
    749,640.34x = 1,124,151.17 × 287,948.53
  4. Step 4: Simplify right side
    749,640.34x = 323,697,672,649.16
  5. Step 5: Solve for x
    x = 323,697,672,649.16/749,640.34
  6. Step 6: Final answer
    x = 431,803.97

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1.5x scale

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.