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Finding the Fourth Proportional to 555,465.60, 766,648.80 and 326,073.60

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Solution

The fourth proportional to 555,465.60, 766,648.80 and 326,073.60 is: 450,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,465.60 : 766,648.80 = 326,073.60 : x
  2. Step 2: Convert to fraction form
    555,465.60/766,648.80 = 326,073.60/x
  3. Step 3: Cross multiply
    555,465.60x = 766,648.80 × 326,073.60
  4. Step 4: Simplify right side
    555,465.60x = 249,983,934,151.68
  5. Step 5: Solve for x
    x = 249,983,934,151.68/555,465.60
  6. Step 6: Final answer
    x = 450,043.95

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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.