Home / 719,969.40-1,077,329.70-656,983.80

Finding the Fourth Proportional to 719,969.40, 1,077,329.70 and 656,983.80

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Solution

The fourth proportional to 719,969.40, 1,077,329.70 and 656,983.80 is: 983,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,969.40 : 1,077,329.70 = 656,983.80 : x
  2. Step 2: Convert to fraction form
    719,969.40/1,077,329.70 = 656,983.80/x
  3. Step 3: Cross multiply
    719,969.40x = 1,077,329.70 × 656,983.80
  4. Step 4: Simplify right side
    719,969.40x = 707,788,160,158.86
  5. Step 5: Solve for x
    x = 707,788,160,158.86/719,969.40
  6. Step 6: Final answer
    x = 983,080.89

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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.