Home / 680,628.60-1,021,927.05-513,323.10

Finding the Fourth Proportional to 680,628.60, 1,021,927.05 and 513,323.10

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Solution

The fourth proportional to 680,628.60, 1,021,927.05 and 513,323.10 is: 770,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,628.60 : 1,021,927.05 = 513,323.10 : x
  2. Step 2: Convert to fraction form
    680,628.60/1,021,927.05 = 513,323.10/x
  3. Step 3: Cross multiply
    680,628.60x = 1,021,927.05 × 513,323.10
  4. Step 4: Simplify right side
    680,628.60x = 524,578,761,279.86
  5. Step 5: Solve for x
    x = 524,578,761,279.86/680,628.60
  6. Step 6: Final answer
    x = 770,726.89

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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.