Home / 918,052.20-1,377,078.30-858,565.80

Finding the Fourth Proportional to 918,052.20, 1,377,078.30 and 858,565.80

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Solution

The fourth proportional to 918,052.20, 1,377,078.30 and 858,565.80 is: 1,287,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,052.20 : 1,377,078.30 = 858,565.80 : x
  2. Step 2: Convert to fraction form
    918,052.20/1,377,078.30 = 858,565.80/x
  3. Step 3: Cross multiply
    918,052.20x = 1,377,078.30 × 858,565.80
  4. Step 4: Simplify right side
    918,052.20x = 1,182,312,332,302.14
  5. Step 5: Solve for x
    x = 1,182,312,332,302.14/918,052.20
  6. Step 6: Final answer
    x = 1,287,848.70

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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.