Home / 779,149.17-1,074,920.40-452,406.38

Finding the Fourth Proportional to 779,149.17, 1,074,920.40 and 452,406.38

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Solution

The fourth proportional to 779,149.17, 1,074,920.40 and 452,406.38 is: 624,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,149.17 : 1,074,920.40 = 452,406.38 : x
  2. Step 2: Convert to fraction form
    779,149.17/1,074,920.40 = 452,406.38/x
  3. Step 3: Cross multiply
    779,149.17x = 1,074,920.40 × 452,406.38
  4. Step 4: Simplify right side
    779,149.17x = 486,300,841,577.55
  5. Step 5: Solve for x
    x = 486,300,841,577.55/779,149.17
  6. Step 6: Final answer
    x = 624,143.44

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.