Home / 860,371.08-1,290,472.56-261,337.20

Finding the Fourth Proportional to 860,371.08, 1,290,472.56 and 261,337.20

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Solution

The fourth proportional to 860,371.08, 1,290,472.56 and 261,337.20 is: 391,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,371.08 : 1,290,472.56 = 261,337.20 : x
  2. Step 2: Convert to fraction form
    860,371.08/1,290,472.56 = 261,337.20/x
  3. Step 3: Cross multiply
    860,371.08x = 1,290,472.56 × 261,337.20
  4. Step 4: Simplify right side
    860,371.08x = 337,248,485,507.23
  5. Step 5: Solve for x
    x = 337,248,485,507.23/860,371.08
  6. Step 6: Final answer
    x = 391,980.27

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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.