Home / 930,291.45-1,393,568.79-424,156.20

Finding the Fourth Proportional to 930,291.45, 1,393,568.79 and 424,156.20

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Solution

The fourth proportional to 930,291.45, 1,393,568.79 and 424,156.20 is: 635,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,291.45 : 1,393,568.79 = 424,156.20 : x
  2. Step 2: Convert to fraction form
    930,291.45/1,393,568.79 = 424,156.20/x
  3. Step 3: Cross multiply
    930,291.45x = 1,393,568.79 × 424,156.20
  4. Step 4: Simplify right side
    930,291.45x = 591,090,835,588.53
  5. Step 5: Solve for x
    x = 591,090,835,588.53/930,291.45
  6. Step 6: Final answer
    x = 635,382.43

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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.