Home / 784,877.10-1,177,315.65-727,140.30

Finding the Fourth Proportional to 784,877.10, 1,177,315.65 and 727,140.30

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Solution

The fourth proportional to 784,877.10, 1,177,315.65 and 727,140.30 is: 1,090,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,877.10 : 1,177,315.65 = 727,140.30 : x
  2. Step 2: Convert to fraction form
    784,877.10/1,177,315.65 = 727,140.30/x
  3. Step 3: Cross multiply
    784,877.10x = 1,177,315.65 × 727,140.30
  4. Step 4: Simplify right side
    784,877.10x = 856,073,654,935.70
  5. Step 5: Solve for x
    x = 856,073,654,935.70/784,877.10
  6. Step 6: Final answer
    x = 1,090,710.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.