Home / 915,519.40-1,373,408.70-284,367.40

Finding the Fourth Proportional to 915,519.40, 1,373,408.70 and 284,367.40

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Solution

The fourth proportional to 915,519.40, 1,373,408.70 and 284,367.40 is: 426,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,519.40 : 1,373,408.70 = 284,367.40 : x
  2. Step 2: Convert to fraction form
    915,519.40/1,373,408.70 = 284,367.40/x
  3. Step 3: Cross multiply
    915,519.40x = 1,373,408.70 × 284,367.40
  4. Step 4: Simplify right side
    915,519.40x = 390,552,661,156.38
  5. Step 5: Solve for x
    x = 390,552,661,156.38/915,519.40
  6. Step 6: Final answer
    x = 426,591.35

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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.