Home / 1,428,497.55-1,971,350.55-783,977.70

Finding the Fourth Proportional to 1,428,497.55, 1,971,350.55 and 783,977.70

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Solution

The fourth proportional to 1,428,497.55, 1,971,350.55 and 783,977.70 is: 1,081,902.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,497.55 : 1,971,350.55 = 783,977.70 : x
  2. Step 2: Convert to fraction form
    1,428,497.55/1,971,350.55 = 783,977.70/x
  3. Step 3: Cross multiply
    1,428,497.55x = 1,971,350.55 × 783,977.70
  4. Step 4: Simplify right side
    1,428,497.55x = 1,545,494,870,082.74
  5. Step 5: Solve for x
    x = 1,545,494,870,082.74/1,428,497.55
  6. Step 6: Final answer
    x = 1,081,902.36

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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.