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Finding the Fourth Proportional to 860,762.23, 1,187,996.03 and 498,123.61

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Solution

The fourth proportional to 860,762.23, 1,187,996.03 and 498,123.61 is: 687,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,762.23 : 1,187,996.03 = 498,123.61 : x
  2. Step 2: Convert to fraction form
    860,762.23/1,187,996.03 = 498,123.61/x
  3. Step 3: Cross multiply
    860,762.23x = 1,187,996.03 × 498,123.61
  4. Step 4: Simplify right side
    860,762.23x = 591,768,871,129.27
  5. Step 5: Solve for x
    x = 591,768,871,129.27/860,762.23
  6. Step 6: Final answer
    x = 687,494.00

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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.