Home / 782,981.08-1,080,462.75-460,628.90

Finding the Fourth Proportional to 782,981.08, 1,080,462.75 and 460,628.90

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Solution

The fourth proportional to 782,981.08, 1,080,462.75 and 460,628.90 is: 635,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,981.08 : 1,080,462.75 = 460,628.90 : x
  2. Step 2: Convert to fraction form
    782,981.08/1,080,462.75 = 460,628.90/x
  3. Step 3: Cross multiply
    782,981.08x = 1,080,462.75 × 460,628.90
  4. Step 4: Simplify right side
    782,981.08x = 497,692,367,984.34
  5. Step 5: Solve for x
    x = 497,692,367,984.34/782,981.08
  6. Step 6: Final answer
    x = 635,637.79

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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.