Home / 918,269.80-1,377,404.70-664,359.10

Finding the Fourth Proportional to 918,269.80, 1,377,404.70 and 664,359.10

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Solution

The fourth proportional to 918,269.80, 1,377,404.70 and 664,359.10 is: 996,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,269.80 : 1,377,404.70 = 664,359.10 : x
  2. Step 2: Convert to fraction form
    918,269.80/1,377,404.70 = 664,359.10/x
  3. Step 3: Cross multiply
    918,269.80x = 1,377,404.70 × 664,359.10
  4. Step 4: Simplify right side
    918,269.80x = 915,091,346,827.77
  5. Step 5: Solve for x
    x = 915,091,346,827.77/918,269.80
  6. Step 6: Final answer
    x = 996,538.65

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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.