Home / 749,147.48-1,034,104.64-491,041.04

Finding the Fourth Proportional to 749,147.48, 1,034,104.64 and 491,041.04

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Solution

The fourth proportional to 749,147.48, 1,034,104.64 and 491,041.04 is: 677,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,147.48 : 1,034,104.64 = 491,041.04 : x
  2. Step 2: Convert to fraction form
    749,147.48/1,034,104.64 = 491,041.04/x
  3. Step 3: Cross multiply
    749,147.48x = 1,034,104.64 × 491,041.04
  4. Step 4: Simplify right side
    749,147.48x = 507,787,817,894.43
  5. Step 5: Solve for x
    x = 507,787,817,894.43/749,147.48
  6. Step 6: Final answer
    x = 677,820.90

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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.