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Finding the Fourth Proportional to 713,150.60, 1,070,330.70 and 292,728.20

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Solution

The fourth proportional to 713,150.60, 1,070,330.70 and 292,728.20 is: 439,340.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,150.60 : 1,070,330.70 = 292,728.20 : x
  2. Step 2: Convert to fraction form
    713,150.60/1,070,330.70 = 292,728.20/x
  3. Step 3: Cross multiply
    713,150.60x = 1,070,330.70 × 292,728.20
  4. Step 4: Simplify right side
    713,150.60x = 313,315,979,215.74
  5. Step 5: Solve for x
    x = 313,315,979,215.74/713,150.60
  6. Step 6: Final answer
    x = 439,340.55

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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.