Home / 840,726.12-1,160,227.65-478,202.16

Finding the Fourth Proportional to 840,726.12, 1,160,227.65 and 478,202.16

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Solution

The fourth proportional to 840,726.12, 1,160,227.65 and 478,202.16 is: 659,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,726.12 : 1,160,227.65 = 478,202.16 : x
  2. Step 2: Convert to fraction form
    840,726.12/1,160,227.65 = 478,202.16/x
  3. Step 3: Cross multiply
    840,726.12x = 1,160,227.65 × 478,202.16
  4. Step 4: Simplify right side
    840,726.12x = 554,823,368,321.72
  5. Step 5: Solve for x
    x = 554,823,368,321.72/840,726.12
  6. Step 6: Final answer
    x = 659,933.54

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Double scale
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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.