Home / 915,603.89-1,373,578.02-368,538.12

Finding the Fourth Proportional to 915,603.89, 1,373,578.02 and 368,538.12

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Solution

The fourth proportional to 915,603.89, 1,373,578.02 and 368,538.12 is: 552,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,603.89 : 1,373,578.02 = 368,538.12 : x
  2. Step 2: Convert to fraction form
    915,603.89/1,373,578.02 = 368,538.12/x
  3. Step 3: Cross multiply
    915,603.89x = 1,373,578.02 × 368,538.12
  4. Step 4: Simplify right side
    915,603.89x = 506,215,861,164.12
  5. Step 5: Solve for x
    x = 506,215,861,164.12/915,603.89
  6. Step 6: Final answer
    x = 552,876.49

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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.