Home / 690,918.75-1,036,235.16-185,359.88

Finding the Fourth Proportional to 690,918.75, 1,036,235.16 and 185,359.88

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Solution

The fourth proportional to 690,918.75, 1,036,235.16 and 185,359.88 is: 278,001.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,918.75 : 1,036,235.16 = 185,359.88 : x
  2. Step 2: Convert to fraction form
    690,918.75/1,036,235.16 = 185,359.88/x
  3. Step 3: Cross multiply
    690,918.75x = 1,036,235.16 × 185,359.88
  4. Step 4: Simplify right side
    690,918.75x = 192,076,424,909.38
  5. Step 5: Solve for x
    x = 192,076,424,909.38/690,918.75
  6. Step 6: Final answer
    x = 278,001.47

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1.5x scale

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.