Home / 865,631.87-1,304,356.37-711,317.15

Finding the Fourth Proportional to 865,631.87, 1,304,356.37 and 711,317.15

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Solution

The fourth proportional to 865,631.87, 1,304,356.37 and 711,317.15 is: 1,071,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,631.87 : 1,304,356.37 = 711,317.15 : x
  2. Step 2: Convert to fraction form
    865,631.87/1,304,356.37 = 711,317.15/x
  3. Step 3: Cross multiply
    865,631.87x = 1,304,356.37 × 711,317.15
  4. Step 4: Simplify right side
    865,631.87x = 927,811,055,692.75
  5. Step 5: Solve for x
    x = 927,811,055,692.75/865,631.87
  6. Step 6: Final answer
    x = 1,071,830.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.