Home / 747,887.60-1,121,666.16-215,289.92

Finding the Fourth Proportional to 747,887.60, 1,121,666.16 and 215,289.92

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Solution

The fourth proportional to 747,887.60, 1,121,666.16 and 215,289.92 is: 322,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,887.60 : 1,121,666.16 = 215,289.92 : x
  2. Step 2: Convert to fraction form
    747,887.60/1,121,666.16 = 215,289.92/x
  3. Step 3: Cross multiply
    747,887.60x = 1,121,666.16 × 215,289.92
  4. Step 4: Simplify right side
    747,887.60x = 241,483,417,853.11
  5. Step 5: Solve for x
    x = 241,483,417,853.11/747,887.60
  6. Step 6: Final answer
    x = 322,887.31

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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.