Home / 749,641.34-1,124,152.66-287,949.53

Finding the Fourth Proportional to 749,641.34, 1,124,152.66 and 287,949.53

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Solution

The fourth proportional to 749,641.34, 1,124,152.66 and 287,949.53 is: 431,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,641.34 : 1,124,152.66 = 287,949.53 : x
  2. Step 2: Convert to fraction form
    749,641.34/1,124,152.66 = 287,949.53/x
  3. Step 3: Cross multiply
    749,641.34x = 1,124,152.66 × 287,949.53
  4. Step 4: Simplify right side
    749,641.34x = 323,699,230,095.25
  5. Step 5: Solve for x
    x = 323,699,230,095.25/749,641.34
  6. Step 6: Final answer
    x = 431,805.47

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Double scale
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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.