Home / 787,417.20-1,181,125.80-486,923.40

Finding the Fourth Proportional to 787,417.20, 1,181,125.80 and 486,923.40

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Solution

The fourth proportional to 787,417.20, 1,181,125.80 and 486,923.40 is: 730,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,417.20 : 1,181,125.80 = 486,923.40 : x
  2. Step 2: Convert to fraction form
    787,417.20/1,181,125.80 = 486,923.40/x
  3. Step 3: Cross multiply
    787,417.20x = 1,181,125.80 × 486,923.40
  4. Step 4: Simplify right side
    787,417.20x = 575,117,790,363.72
  5. Step 5: Solve for x
    x = 575,117,790,363.72/787,417.20
  6. Step 6: Final answer
    x = 730,385.10

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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.