Home / 721,037.24-1,080,972.63-440,459.72

Finding the Fourth Proportional to 721,037.24, 1,080,972.63 and 440,459.72

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Solution

The fourth proportional to 721,037.24, 1,080,972.63 and 440,459.72 is: 660,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,037.24 : 1,080,972.63 = 440,459.72 : x
  2. Step 2: Convert to fraction form
    721,037.24/1,080,972.63 = 440,459.72/x
  3. Step 3: Cross multiply
    721,037.24x = 1,080,972.63 × 440,459.72
  4. Step 4: Simplify right side
    721,037.24x = 476,124,901,937.46
  5. Step 5: Solve for x
    x = 476,124,901,937.46/721,037.24
  6. Step 6: Final answer
    x = 660,333.30

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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.