Home / 860,332.40-1,187,251.48-478,355.84

Finding the Fourth Proportional to 860,332.40, 1,187,251.48 and 478,355.84

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Solution

The fourth proportional to 860,332.40, 1,187,251.48 and 478,355.84 is: 660,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,332.40 : 1,187,251.48 = 478,355.84 : x
  2. Step 2: Convert to fraction form
    860,332.40/1,187,251.48 = 478,355.84/x
  3. Step 3: Cross multiply
    860,332.40x = 1,187,251.48 × 478,355.84
  4. Step 4: Simplify right side
    860,332.40x = 567,928,679,006.64
  5. Step 5: Solve for x
    x = 567,928,679,006.64/860,332.40
  6. Step 6: Final answer
    x = 660,127.04

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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.