Home / 750,645.12-1,123,142.60-526,443.20

Finding the Fourth Proportional to 750,645.12, 1,123,142.60 and 526,443.20

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Solution

The fourth proportional to 750,645.12, 1,123,142.60 and 526,443.20 is: 787,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,645.12 : 1,123,142.60 = 526,443.20 : x
  2. Step 2: Convert to fraction form
    750,645.12/1,123,142.60 = 526,443.20/x
  3. Step 3: Cross multiply
    750,645.12x = 1,123,142.60 × 526,443.20
  4. Step 4: Simplify right side
    750,645.12x = 591,270,784,400.32
  5. Step 5: Solve for x
    x = 591,270,784,400.32/750,645.12
  6. Step 6: Final answer
    x = 787,683.51

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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.