Home / 749,344.90-1,124,017.35-433,639.30

Finding the Fourth Proportional to 749,344.90, 1,124,017.35 and 433,639.30

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Solution

The fourth proportional to 749,344.90, 1,124,017.35 and 433,639.30 is: 650,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,344.90 : 1,124,017.35 = 433,639.30 : x
  2. Step 2: Convert to fraction form
    749,344.90/1,124,017.35 = 433,639.30/x
  3. Step 3: Cross multiply
    749,344.90x = 1,124,017.35 × 433,639.30
  4. Step 4: Simplify right side
    749,344.90x = 487,418,096,841.86
  5. Step 5: Solve for x
    x = 487,418,096,841.86/749,344.90
  6. Step 6: Final answer
    x = 650,458.95

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Half scale
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Double scale
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Similar ratio
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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.