Home / 284,837.40-427,280.49-74,475

Finding the Fourth Proportional to 284,837.40, 427,280.49 and 74,475

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Solution

The fourth proportional to 284,837.40, 427,280.49 and 74,475 is: 111,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,837.40 : 427,280.49 = 74,475 : x
  2. Step 2: Convert to fraction form
    284,837.40/427,280.49 = 74,475/x
  3. Step 3: Cross multiply
    284,837.40x = 427,280.49 × 74,475
  4. Step 4: Simplify right side
    284,837.40x = 31,821,714,492.75
  5. Step 5: Solve for x
    x = 31,821,714,492.75/284,837.40
  6. Step 6: Final answer
    x = 111,718.88

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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.