Home / 730,665.57-1,008,286.80-399,515.46

Finding the Fourth Proportional to 730,665.57, 1,008,286.80 and 399,515.46

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Solution

The fourth proportional to 730,665.57, 1,008,286.80 and 399,515.46 is: 551,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,665.57 : 1,008,286.80 = 399,515.46 : x
  2. Step 2: Convert to fraction form
    730,665.57/1,008,286.80 = 399,515.46/x
  3. Step 3: Cross multiply
    730,665.57x = 1,008,286.80 × 399,515.46
  4. Step 4: Simplify right side
    730,665.57x = 402,826,164,713.93
  5. Step 5: Solve for x
    x = 402,826,164,713.93/730,665.57
  6. Step 6: Final answer
    x = 551,314.01

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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.