Home / 913,480.80-1,370,221.20-869,935.20

Finding the Fourth Proportional to 913,480.80, 1,370,221.20 and 869,935.20

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Solution

The fourth proportional to 913,480.80, 1,370,221.20 and 869,935.20 is: 1,304,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,480.80 : 1,370,221.20 = 869,935.20 : x
  2. Step 2: Convert to fraction form
    913,480.80/1,370,221.20 = 869,935.20/x
  3. Step 3: Cross multiply
    913,480.80x = 1,370,221.20 × 869,935.20
  4. Step 4: Simplify right side
    913,480.80x = 1,192,003,653,666.24
  5. Step 5: Solve for x
    x = 1,192,003,653,666.24/913,480.80
  6. Step 6: Final answer
    x = 1,304,902.80

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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.