Home / 690,199.40-1,034,949.02-315,901.80

Finding the Fourth Proportional to 690,199.40, 1,034,949.02 and 315,901.80

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Solution

The fourth proportional to 690,199.40, 1,034,949.02 and 315,901.80 is: 473,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,199.40 : 1,034,949.02 = 315,901.80 : x
  2. Step 2: Convert to fraction form
    690,199.40/1,034,949.02 = 315,901.80/x
  3. Step 3: Cross multiply
    690,199.40x = 1,034,949.02 × 315,901.80
  4. Step 4: Simplify right side
    690,199.40x = 326,942,258,326.24
  5. Step 5: Solve for x
    x = 326,942,258,326.24/690,199.40
  6. Step 6: Final answer
    x = 473,692.47

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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.