Home / 485,996.16-670,675.20-284,792

Finding the Fourth Proportional to 485,996.16, 670,675.20 and 284,792

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Solution

The fourth proportional to 485,996.16, 670,675.20 and 284,792 is: 393,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,996.16 : 670,675.20 = 284,792 : x
  2. Step 2: Convert to fraction form
    485,996.16/670,675.20 = 284,792/x
  3. Step 3: Cross multiply
    485,996.16x = 670,675.20 × 284,792
  4. Step 4: Simplify right side
    485,996.16x = 191,002,931,558.40
  5. Step 5: Solve for x
    x = 191,002,931,558.40/485,996.16
  6. Step 6: Final answer
    x = 393,013.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.