Home / 1,438,830.59-2,157,999.65-479,177.15

Finding the Fourth Proportional to 1,438,830.59, 2,157,999.65 and 479,177.15

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Solution

The fourth proportional to 1,438,830.59, 2,157,999.65 and 479,177.15 is: 718,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,830.59 : 2,157,999.65 = 479,177.15 : x
  2. Step 2: Convert to fraction form
    1,438,830.59/2,157,999.65 = 479,177.15/x
  3. Step 3: Cross multiply
    1,438,830.59x = 2,157,999.65 × 479,177.15
  4. Step 4: Simplify right side
    1,438,830.59x = 1,034,064,119,592.11
  5. Step 5: Solve for x
    x = 1,034,064,119,592.11/1,438,830.59
  6. Step 6: Final answer
    x = 718,683.72

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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.