Home / 840,851.13-1,160,401.70-478,265.66

Finding the Fourth Proportional to 840,851.13, 1,160,401.70 and 478,265.66

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Solution

The fourth proportional to 840,851.13, 1,160,401.70 and 478,265.66 is: 660,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,851.13 : 1,160,401.70 = 478,265.66 : x
  2. Step 2: Convert to fraction form
    840,851.13/1,160,401.70 = 478,265.66/x
  3. Step 3: Cross multiply
    840,851.13x = 1,160,401.70 × 478,265.66
  4. Step 4: Simplify right side
    840,851.13x = 554,980,288,497.80
  5. Step 5: Solve for x
    x = 554,980,288,497.80/840,851.13
  6. Step 6: Final answer
    x = 660,022.05

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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.