Home / 669,853.90-1,003,225.65-654,301.90

Finding the Fourth Proportional to 669,853.90, 1,003,225.65 and 654,301.90

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Solution

The fourth proportional to 669,853.90, 1,003,225.65 and 654,301.90 is: 979,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,853.90 : 1,003,225.65 = 654,301.90 : x
  2. Step 2: Convert to fraction form
    669,853.90/1,003,225.65 = 654,301.90/x
  3. Step 3: Cross multiply
    669,853.90x = 1,003,225.65 × 654,301.90
  4. Step 4: Simplify right side
    669,853.90x = 656,412,448,923.74
  5. Step 5: Solve for x
    x = 656,412,448,923.74/669,853.90
  6. Step 6: Final answer
    x = 979,933.76

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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.