Home / 498,897.40-688,478.20-269,454.84

Finding the Fourth Proportional to 498,897.40, 688,478.20 and 269,454.84

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Solution

The fourth proportional to 498,897.40, 688,478.20 and 269,454.84 is: 371,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,897.40 : 688,478.20 = 269,454.84 : x
  2. Step 2: Convert to fraction form
    498,897.40/688,478.20 = 269,454.84/x
  3. Step 3: Cross multiply
    498,897.40x = 688,478.20 × 269,454.84
  4. Step 4: Simplify right side
    498,897.40x = 185,513,783,224.49
  5. Step 5: Solve for x
    x = 185,513,783,224.49/498,897.40
  6. Step 6: Final answer
    x = 371,847.56

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1.5x scale

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.