Home / 487,905.60-731,483.22-247,822.23

Finding the Fourth Proportional to 487,905.60, 731,483.22 and 247,822.23

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Solution

The fourth proportional to 487,905.60, 731,483.22 and 247,822.23 is: 371,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,905.60 : 731,483.22 = 247,822.23 : x
  2. Step 2: Convert to fraction form
    487,905.60/731,483.22 = 247,822.23/x
  3. Step 3: Cross multiply
    487,905.60x = 731,483.22 × 247,822.23
  4. Step 4: Simplify right side
    487,905.60x = 181,277,802,787.98
  5. Step 5: Solve for x
    x = 181,277,802,787.98/487,905.60
  6. Step 6: Final answer
    x = 371,542.78

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1.5x scale

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.