Home / 487,220.20-730,822.28-145,664.44

Finding the Fourth Proportional to 487,220.20, 730,822.28 and 145,664.44

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Solution

The fourth proportional to 487,220.20, 730,822.28 and 145,664.44 is: 218,494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,220.20 : 730,822.28 = 145,664.44 : x
  2. Step 2: Convert to fraction form
    487,220.20/730,822.28 = 145,664.44/x
  3. Step 3: Cross multiply
    487,220.20x = 730,822.28 × 145,664.44
  4. Step 4: Simplify right side
    487,220.20x = 106,454,818,155.72
  5. Step 5: Solve for x
    x = 106,454,818,155.72/487,220.20
  6. Step 6: Final answer
    x = 218,494.26

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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.