Home / 918,006.80-1,377,010.20-899,344.40

Finding the Fourth Proportional to 918,006.80, 1,377,010.20 and 899,344.40

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Solution

The fourth proportional to 918,006.80, 1,377,010.20 and 899,344.40 is: 1,349,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,006.80 : 1,377,010.20 = 899,344.40 : x
  2. Step 2: Convert to fraction form
    918,006.80/1,377,010.20 = 899,344.40/x
  3. Step 3: Cross multiply
    918,006.80x = 1,377,010.20 × 899,344.40
  4. Step 4: Simplify right side
    918,006.80x = 1,238,406,412,112.88
  5. Step 5: Solve for x
    x = 1,238,406,412,112.88/918,006.80
  6. Step 6: Final answer
    x = 1,349,016.60

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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.