Home / 1,070,654.79-1,605,340.64-340,862.61

Finding the Fourth Proportional to 1,070,654.79, 1,605,340.64 and 340,862.61

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Solution

The fourth proportional to 1,070,654.79, 1,605,340.64 and 340,862.61 is: 511,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,654.79 : 1,605,340.64 = 340,862.61 : x
  2. Step 2: Convert to fraction form
    1,070,654.79/1,605,340.64 = 340,862.61/x
  3. Step 3: Cross multiply
    1,070,654.79x = 1,605,340.64 × 340,862.61
  4. Step 4: Simplify right side
    1,070,654.79x = 547,200,591,899.24
  5. Step 5: Solve for x
    x = 547,200,591,899.24/1,070,654.79
  6. Step 6: Final answer
    x = 511,089.66

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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.