Home / 860,146.55-1,290,375.08-354,431.15

Finding the Fourth Proportional to 860,146.55, 1,290,375.08 and 354,431.15

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Solution

The fourth proportional to 860,146.55, 1,290,375.08 and 354,431.15 is: 531,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,146.55 : 1,290,375.08 = 354,431.15 : x
  2. Step 2: Convert to fraction form
    860,146.55/1,290,375.08 = 354,431.15/x
  3. Step 3: Cross multiply
    860,146.55x = 1,290,375.08 × 354,431.15
  4. Step 4: Simplify right side
    860,146.55x = 457,349,123,535.74
  5. Step 5: Solve for x
    x = 457,349,123,535.74/860,146.55
  6. Step 6: Final answer
    x = 531,710.70

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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.