Home / 781,713.04-1,077,289.68-626,488.01

Finding the Fourth Proportional to 781,713.04, 1,077,289.68 and 626,488.01

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Solution

The fourth proportional to 781,713.04, 1,077,289.68 and 626,488.01 is: 863,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,713.04 : 1,077,289.68 = 626,488.01 : x
  2. Step 2: Convert to fraction form
    781,713.04/1,077,289.68 = 626,488.01/x
  3. Step 3: Cross multiply
    781,713.04x = 1,077,289.68 × 626,488.01
  4. Step 4: Simplify right side
    781,713.04x = 674,909,067,816.74
  5. Step 5: Solve for x
    x = 674,909,067,816.74/781,713.04
  6. Step 6: Final answer
    x = 863,371.90

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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.