Home / 918,461.59-1,377,696.77-278,770.87

Finding the Fourth Proportional to 918,461.59, 1,377,696.77 and 278,770.87

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Solution

The fourth proportional to 918,461.59, 1,377,696.77 and 278,770.87 is: 418,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,461.59 : 1,377,696.77 = 278,770.87 : x
  2. Step 2: Convert to fraction form
    918,461.59/1,377,696.77 = 278,770.87/x
  3. Step 3: Cross multiply
    918,461.59x = 1,377,696.77 × 278,770.87
  4. Step 4: Simplify right side
    918,461.59x = 384,061,728,542.75
  5. Step 5: Solve for x
    x = 384,061,728,542.75/918,461.59
  6. Step 6: Final answer
    x = 418,157.64

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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.