Home / 918,411.53-1,377,084.93-310,997.09

Finding the Fourth Proportional to 918,411.53, 1,377,084.93 and 310,997.09

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Solution

The fourth proportional to 918,411.53, 1,377,084.93 and 310,997.09 is: 466,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,411.53 : 1,377,084.93 = 310,997.09 : x
  2. Step 2: Convert to fraction form
    918,411.53/1,377,084.93 = 310,997.09/x
  3. Step 3: Cross multiply
    918,411.53x = 1,377,084.93 × 310,997.09
  4. Step 4: Simplify right side
    918,411.53x = 428,269,399,027.43
  5. Step 5: Solve for x
    x = 428,269,399,027.43/918,411.53
  6. Step 6: Final answer
    x = 466,315.36

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Double scale
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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.