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Finding the Fourth Proportional to 625,628.80, 940,192.80 and 548,646.40

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Solution

The fourth proportional to 625,628.80, 940,192.80 and 548,646.40 is: 824,503.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,628.80 : 940,192.80 = 548,646.40 : x
  2. Step 2: Convert to fraction form
    625,628.80/940,192.80 = 548,646.40/x
  3. Step 3: Cross multiply
    625,628.80x = 940,192.80 × 548,646.40
  4. Step 4: Simplify right side
    625,628.80x = 515,833,395,025.92
  5. Step 5: Solve for x
    x = 515,833,395,025.92/625,628.80
  6. Step 6: Final answer
    x = 824,503.92

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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.