Home / 918,644.65-1,377,877.88-278,953.93

Finding the Fourth Proportional to 918,644.65, 1,377,877.88 and 278,953.93

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Solution

The fourth proportional to 918,644.65, 1,377,877.88 and 278,953.93 is: 418,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,644.65 : 1,377,877.88 = 278,953.93 : x
  2. Step 2: Convert to fraction form
    918,644.65/1,377,877.88 = 278,953.93/x
  3. Step 3: Cross multiply
    918,644.65x = 1,377,877.88 × 278,953.93
  4. Step 4: Simplify right side
    918,644.65x = 384,364,444,355.24
  5. Step 5: Solve for x
    x = 384,364,444,355.24/918,644.65
  6. Step 6: Final answer
    x = 418,403.83

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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.