Home / 917,953.82-1,377,469.65-385,433.90

Finding the Fourth Proportional to 917,953.82, 1,377,469.65 and 385,433.90

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Solution

The fourth proportional to 917,953.82, 1,377,469.65 and 385,433.90 is: 578,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,953.82 : 1,377,469.65 = 385,433.90 : x
  2. Step 2: Convert to fraction form
    917,953.82/1,377,469.65 = 385,433.90/x
  3. Step 3: Cross multiply
    917,953.82x = 1,377,469.65 × 385,433.90
  4. Step 4: Simplify right side
    917,953.82x = 530,923,499,331.14
  5. Step 5: Solve for x
    x = 530,923,499,331.14/917,953.82
  6. Step 6: Final answer
    x = 578,377.13

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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.