Home / 830,656.30-1,245,984.45-547,221.10

Finding the Fourth Proportional to 830,656.30, 1,245,984.45 and 547,221.10

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Solution

The fourth proportional to 830,656.30, 1,245,984.45 and 547,221.10 is: 820,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,656.30 : 1,245,984.45 = 547,221.10 : x
  2. Step 2: Convert to fraction form
    830,656.30/1,245,984.45 = 547,221.10/x
  3. Step 3: Cross multiply
    830,656.30x = 1,245,984.45 × 547,221.10
  4. Step 4: Simplify right side
    830,656.30x = 681,828,981,311.90
  5. Step 5: Solve for x
    x = 681,828,981,311.90/830,656.30
  6. Step 6: Final answer
    x = 820,831.65

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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.