Home / 656,382.60-905,976.53-427,510.22

Finding the Fourth Proportional to 656,382.60, 905,976.53 and 427,510.22

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Solution

The fourth proportional to 656,382.60, 905,976.53 and 427,510.22 is: 590,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,382.60 : 905,976.53 = 427,510.22 : x
  2. Step 2: Convert to fraction form
    656,382.60/905,976.53 = 427,510.22/x
  3. Step 3: Cross multiply
    656,382.60x = 905,976.53 × 427,510.22
  4. Step 4: Simplify right side
    656,382.60x = 387,314,218,987.70
  5. Step 5: Solve for x
    x = 387,314,218,987.70/656,382.60
  6. Step 6: Final answer
    x = 590,073.87

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1.5x scale

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.