Home / 499,263.09-688,903.43-284,407.35

Finding the Fourth Proportional to 499,263.09, 688,903.43 and 284,407.35

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Solution

The fourth proportional to 499,263.09, 688,903.43 and 284,407.35 is: 392,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,263.09 : 688,903.43 = 284,407.35 : x
  2. Step 2: Convert to fraction form
    499,263.09/688,903.43 = 284,407.35/x
  3. Step 3: Cross multiply
    499,263.09x = 688,903.43 × 284,407.35
  4. Step 4: Simplify right side
    499,263.09x = 195,929,197,510.17
  5. Step 5: Solve for x
    x = 195,929,197,510.17/499,263.09
  6. Step 6: Final answer
    x = 392,436.78

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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.