Home / 915,718.32-1,373,810.88-284,637.60

Finding the Fourth Proportional to 915,718.32, 1,373,810.88 and 284,637.60

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Solution

The fourth proportional to 915,718.32, 1,373,810.88 and 284,637.60 is: 427,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,718.32 : 1,373,810.88 = 284,637.60 : x
  2. Step 2: Convert to fraction form
    915,718.32/1,373,810.88 = 284,637.60/x
  3. Step 3: Cross multiply
    915,718.32x = 1,373,810.88 × 284,637.60
  4. Step 4: Simplify right side
    915,718.32x = 391,038,231,737.09
  5. Step 5: Solve for x
    x = 391,038,231,737.09/915,718.32
  6. Step 6: Final answer
    x = 427,028.95

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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.