Home / 813,983.66-1,123,412.19-451,488.14

Finding the Fourth Proportional to 813,983.66, 1,123,412.19 and 451,488.14

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Solution

The fourth proportional to 813,983.66, 1,123,412.19 and 451,488.14 is: 623,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,983.66 : 1,123,412.19 = 451,488.14 : x
  2. Step 2: Convert to fraction form
    813,983.66/1,123,412.19 = 451,488.14/x
  3. Step 3: Cross multiply
    813,983.66x = 1,123,412.19 × 451,488.14
  4. Step 4: Simplify right side
    813,983.66x = 507,207,280,116.43
  5. Step 5: Solve for x
    x = 507,207,280,116.43/813,983.66
  6. Step 6: Final answer
    x = 623,117.28

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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.