Home / 918,348.65-1,377,623.43-311,575.07

Finding the Fourth Proportional to 918,348.65, 1,377,623.43 and 311,575.07

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Solution

The fourth proportional to 918,348.65, 1,377,623.43 and 311,575.07 is: 467,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,348.65 : 1,377,623.43 = 311,575.07 : x
  2. Step 2: Convert to fraction form
    918,348.65/1,377,623.43 = 311,575.07/x
  3. Step 3: Cross multiply
    918,348.65x = 1,377,623.43 × 311,575.07
  4. Step 4: Simplify right side
    918,348.65x = 429,233,109,747.77
  5. Step 5: Solve for x
    x = 429,233,109,747.77/918,348.65
  6. Step 6: Final answer
    x = 467,396.68

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1.5x scale

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.