Home / 566,121.48-781,253.85-307,999.91

Finding the Fourth Proportional to 566,121.48, 781,253.85 and 307,999.91

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Solution

The fourth proportional to 566,121.48, 781,253.85 and 307,999.91 is: 425,043.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,121.48 : 781,253.85 = 307,999.91 : x
  2. Step 2: Convert to fraction form
    566,121.48/781,253.85 = 307,999.91/x
  3. Step 3: Cross multiply
    566,121.48x = 781,253.85 × 307,999.91
  4. Step 4: Simplify right side
    566,121.48x = 240,626,111,580.88
  5. Step 5: Solve for x
    x = 240,626,111,580.88/566,121.48
  6. Step 6: Final answer
    x = 425,043.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.