Home / 690,358.74-1,035,081.27-330,582.66

Finding the Fourth Proportional to 690,358.74, 1,035,081.27 and 330,582.66

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Solution

The fourth proportional to 690,358.74, 1,035,081.27 and 330,582.66 is: 495,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,358.74 : 1,035,081.27 = 330,582.66 : x
  2. Step 2: Convert to fraction form
    690,358.74/1,035,081.27 = 330,582.66/x
  3. Step 3: Cross multiply
    690,358.74x = 1,035,081.27 × 330,582.66
  4. Step 4: Simplify right side
    690,358.74x = 342,179,919,552.78
  5. Step 5: Solve for x
    x = 342,179,919,552.78/690,358.74
  6. Step 6: Final answer
    x = 495,655.23

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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.