Home / 726,710.60-1,090,713.90-426,816.20

Finding the Fourth Proportional to 726,710.60, 1,090,713.90 and 426,816.20

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Solution

The fourth proportional to 726,710.60, 1,090,713.90 and 426,816.20 is: 640,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,710.60 : 1,090,713.90 = 426,816.20 : x
  2. Step 2: Convert to fraction form
    726,710.60/1,090,713.90 = 426,816.20/x
  3. Step 3: Cross multiply
    726,710.60x = 1,090,713.90 × 426,816.20
  4. Step 4: Simplify right side
    726,710.60x = 465,534,362,085.18
  5. Step 5: Solve for x
    x = 465,534,362,085.18/726,710.60
  6. Step 6: Final answer
    x = 640,604.89

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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.