Home / 815,618.40-1,221,008.40-606,184.80

Finding the Fourth Proportional to 815,618.40, 1,221,008.40 and 606,184.80

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Solution

The fourth proportional to 815,618.40, 1,221,008.40 and 606,184.80 is: 907,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,618.40 : 1,221,008.40 = 606,184.80 : x
  2. Step 2: Convert to fraction form
    815,618.40/1,221,008.40 = 606,184.80/x
  3. Step 3: Cross multiply
    815,618.40x = 1,221,008.40 × 606,184.80
  4. Step 4: Simplify right side
    815,618.40x = 740,156,732,752.32
  5. Step 5: Solve for x
    x = 740,156,732,752.32/815,618.40
  6. Step 6: Final answer
    x = 907,479.20

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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.