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Finding the Fourth Proportional to 477,780.15, 716,663.75 and 162,456.87

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Solution

The fourth proportional to 477,780.15, 716,663.75 and 162,456.87 is: 243,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,780.15 : 716,663.75 = 162,456.87 : x
  2. Step 2: Convert to fraction form
    477,780.15/716,663.75 = 162,456.87/x
  3. Step 3: Cross multiply
    477,780.15x = 716,663.75 × 162,456.87
  4. Step 4: Simplify right side
    477,780.15x = 116,426,952,456.49
  5. Step 5: Solve for x
    x = 116,426,952,456.49/477,780.15
  6. Step 6: Final answer
    x = 243,683.11

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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.