Home / 720,102.30-1,080,153.45-587,132.70

Finding the Fourth Proportional to 720,102.30, 1,080,153.45 and 587,132.70

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Solution

The fourth proportional to 720,102.30, 1,080,153.45 and 587,132.70 is: 880,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,102.30 : 1,080,153.45 = 587,132.70 : x
  2. Step 2: Convert to fraction form
    720,102.30/1,080,153.45 = 587,132.70/x
  3. Step 3: Cross multiply
    720,102.30x = 1,080,153.45 × 587,132.70
  4. Step 4: Simplify right side
    720,102.30x = 634,193,411,512.82
  5. Step 5: Solve for x
    x = 634,193,411,512.82/720,102.30
  6. Step 6: Final answer
    x = 880,699.05

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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.