Home / 749,145.47-1,034,101.88-491,039.04

Finding the Fourth Proportional to 749,145.47, 1,034,101.88 and 491,039.04

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Solution

The fourth proportional to 749,145.47, 1,034,101.88 and 491,039.04 is: 677,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,145.47 : 1,034,101.88 = 491,039.04 : x
  2. Step 2: Convert to fraction form
    749,145.47/1,034,101.88 = 491,039.04/x
  3. Step 3: Cross multiply
    749,145.47x = 1,034,101.88 × 491,039.04
  4. Step 4: Simplify right side
    749,145.47x = 507,784,394,417.40
  5. Step 5: Solve for x
    x = 507,784,394,417.40/749,145.47
  6. Step 6: Final answer
    x = 677,818.15

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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.