Home / 860,728.56-1,291,249.17-355,013.70

Finding the Fourth Proportional to 860,728.56, 1,291,249.17 and 355,013.70

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Solution

The fourth proportional to 860,728.56, 1,291,249.17 and 355,013.70 is: 532,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,728.56 : 1,291,249.17 = 355,013.70 : x
  2. Step 2: Convert to fraction form
    860,728.56/1,291,249.17 = 355,013.70/x
  3. Step 3: Cross multiply
    860,728.56x = 1,291,249.17 × 355,013.70
  4. Step 4: Simplify right side
    860,728.56x = 458,411,145,463.63
  5. Step 5: Solve for x
    x = 458,411,145,463.63/860,728.56
  6. Step 6: Final answer
    x = 532,585.03

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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.