Home / 1,377,436.38-2,065,999.05-478,726.62

Finding the Fourth Proportional to 1,377,436.38, 2,065,999.05 and 478,726.62

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Solution

The fourth proportional to 1,377,436.38, 2,065,999.05 and 478,726.62 is: 718,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,436.38 : 2,065,999.05 = 478,726.62 : x
  2. Step 2: Convert to fraction form
    1,377,436.38/2,065,999.05 = 478,726.62/x
  3. Step 3: Cross multiply
    1,377,436.38x = 2,065,999.05 × 478,726.62
  4. Step 4: Simplify right side
    1,377,436.38x = 989,048,742,129.71
  5. Step 5: Solve for x
    x = 989,048,742,129.71/1,377,436.38
  6. Step 6: Final answer
    x = 718,035.88

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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.