Home / 918,923.46-1,267,928.55-536,876.43

Finding the Fourth Proportional to 918,923.46, 1,267,928.55 and 536,876.43

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Solution

The fourth proportional to 918,923.46, 1,267,928.55 and 536,876.43 is: 740,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,923.46 : 1,267,928.55 = 536,876.43 : x
  2. Step 2: Convert to fraction form
    918,923.46/1,267,928.55 = 536,876.43/x
  3. Step 3: Cross multiply
    918,923.46x = 1,267,928.55 × 536,876.43
  4. Step 4: Simplify right side
    918,923.46x = 680,720,953,419.08
  5. Step 5: Solve for x
    x = 680,720,953,419.08/918,923.46
  6. Step 6: Final answer
    x = 740,780.91

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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.