Home / 772,455.90-1,158,793.20-239,921.40

Finding the Fourth Proportional to 772,455.90, 1,158,793.20 and 239,921.40

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Solution

The fourth proportional to 772,455.90, 1,158,793.20 and 239,921.40 is: 359,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,455.90 : 1,158,793.20 = 239,921.40 : x
  2. Step 2: Convert to fraction form
    772,455.90/1,158,793.20 = 239,921.40/x
  3. Step 3: Cross multiply
    772,455.90x = 1,158,793.20 × 239,921.40
  4. Step 4: Simplify right side
    772,455.90x = 278,019,286,854.48
  5. Step 5: Solve for x
    x = 278,019,286,854.48/772,455.90
  6. Step 6: Final answer
    x = 359,916.06

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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.