Home / 787,275.52-1,086,169.39-477,278.08

Finding the Fourth Proportional to 787,275.52, 1,086,169.39 and 477,278.08

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Solution

The fourth proportional to 787,275.52, 1,086,169.39 and 477,278.08 is: 658,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,275.52 : 1,086,169.39 = 477,278.08 : x
  2. Step 2: Convert to fraction form
    787,275.52/1,086,169.39 = 477,278.08/x
  3. Step 3: Cross multiply
    787,275.52x = 1,086,169.39 × 477,278.08
  4. Step 4: Simplify right side
    787,275.52x = 518,404,837,105.35
  5. Step 5: Solve for x
    x = 518,404,837,105.35/787,275.52
  6. Step 6: Final answer
    x = 658,479.56

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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.