Home / 890,945.28-1,228,315.10-707,791.55

Finding the Fourth Proportional to 890,945.28, 1,228,315.10 and 707,791.55

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Solution

The fourth proportional to 890,945.28, 1,228,315.10 and 707,791.55 is: 975,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,945.28 : 1,228,315.10 = 707,791.55 : x
  2. Step 2: Convert to fraction form
    890,945.28/1,228,315.10 = 707,791.55/x
  3. Step 3: Cross multiply
    890,945.28x = 1,228,315.10 × 707,791.55
  4. Step 4: Simplify right side
    890,945.28x = 869,391,038,836.87
  5. Step 5: Solve for x
    x = 869,391,038,836.87/890,945.28
  6. Step 6: Final answer
    x = 975,807.45

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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.