Home / 485,128.20-727,692.30-360,712.20

Finding the Fourth Proportional to 485,128.20, 727,692.30 and 360,712.20

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Solution

The fourth proportional to 485,128.20, 727,692.30 and 360,712.20 is: 541,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,128.20 : 727,692.30 = 360,712.20 : x
  2. Step 2: Convert to fraction form
    485,128.20/727,692.30 = 360,712.20/x
  3. Step 3: Cross multiply
    485,128.20x = 727,692.30 × 360,712.20
  4. Step 4: Simplify right side
    485,128.20x = 262,487,490,456.06
  5. Step 5: Solve for x
    x = 262,487,490,456.06/485,128.20
  6. Step 6: Final answer
    x = 541,068.30

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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.