Home / 860,254.80-1,187,132.10-467,779.20

Finding the Fourth Proportional to 860,254.80, 1,187,132.10 and 467,779.20

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Solution

The fourth proportional to 860,254.80, 1,187,132.10 and 467,779.20 is: 645,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,254.80 : 1,187,132.10 = 467,779.20 : x
  2. Step 2: Convert to fraction form
    860,254.80/1,187,132.10 = 467,779.20/x
  3. Step 3: Cross multiply
    860,254.80x = 1,187,132.10 × 467,779.20
  4. Step 4: Simplify right side
    860,254.80x = 555,315,704,032.32
  5. Step 5: Solve for x
    x = 555,315,704,032.32/860,254.80
  6. Step 6: Final answer
    x = 645,524.68

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Double scale
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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.