Home / 740,966.40-1,022,457.60-418,651.20

Finding the Fourth Proportional to 740,966.40, 1,022,457.60 and 418,651.20

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Solution

The fourth proportional to 740,966.40, 1,022,457.60 and 418,651.20 is: 577,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,966.40 : 1,022,457.60 = 418,651.20 : x
  2. Step 2: Convert to fraction form
    740,966.40/1,022,457.60 = 418,651.20/x
  3. Step 3: Cross multiply
    740,966.40x = 1,022,457.60 × 418,651.20
  4. Step 4: Simplify right side
    740,966.40x = 428,053,101,189.12
  5. Step 5: Solve for x
    x = 428,053,101,189.12/740,966.40
  6. Step 6: Final answer
    x = 577,695.70

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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.