Home / 782,666.32-1,080,248.48-476,842.72

Finding the Fourth Proportional to 782,666.32, 1,080,248.48 and 476,842.72

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Solution

The fourth proportional to 782,666.32, 1,080,248.48 and 476,842.72 is: 658,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,666.32 : 1,080,248.48 = 476,842.72 : x
  2. Step 2: Convert to fraction form
    782,666.32/1,080,248.48 = 476,842.72/x
  3. Step 3: Cross multiply
    782,666.32x = 1,080,248.48 × 476,842.72
  4. Step 4: Simplify right side
    782,666.32x = 515,108,623,479.07
  5. Step 5: Solve for x
    x = 515,108,623,479.07/782,666.32
  6. Step 6: Final answer
    x = 658,145.89

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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.