Home / 857,700.28-1,183,627.04-475,729.80

Finding the Fourth Proportional to 857,700.28, 1,183,627.04 and 475,729.80

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Solution

The fourth proportional to 857,700.28, 1,183,627.04 and 475,729.80 is: 656,507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,700.28 : 1,183,627.04 = 475,729.80 : x
  2. Step 2: Convert to fraction form
    857,700.28/1,183,627.04 = 475,729.80/x
  3. Step 3: Cross multiply
    857,700.28x = 1,183,627.04 × 475,729.80
  4. Step 4: Simplify right side
    857,700.28x = 563,086,655,013.79
  5. Step 5: Solve for x
    x = 563,086,655,013.79/857,700.28
  6. Step 6: Final answer
    x = 656,507.49

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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.