Home / 670,720.30-1,006,080.45-404,343.70

Finding the Fourth Proportional to 670,720.30, 1,006,080.45 and 404,343.70

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Solution

The fourth proportional to 670,720.30, 1,006,080.45 and 404,343.70 is: 606,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,720.30 : 1,006,080.45 = 404,343.70 : x
  2. Step 2: Convert to fraction form
    670,720.30/1,006,080.45 = 404,343.70/x
  3. Step 3: Cross multiply
    670,720.30x = 1,006,080.45 × 404,343.70
  4. Step 4: Simplify right side
    670,720.30x = 406,802,291,650.67
  5. Step 5: Solve for x
    x = 406,802,291,650.67/670,720.30
  6. Step 6: Final answer
    x = 606,515.55

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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.