Home / 675,176.20-1,012,602.30-390,250.60

Finding the Fourth Proportional to 675,176.20, 1,012,602.30 and 390,250.60

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Solution

The fourth proportional to 675,176.20, 1,012,602.30 and 390,250.60 is: 585,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,176.20 : 1,012,602.30 = 390,250.60 : x
  2. Step 2: Convert to fraction form
    675,176.20/1,012,602.30 = 390,250.60/x
  3. Step 3: Cross multiply
    675,176.20x = 1,012,602.30 × 390,250.60
  4. Step 4: Simplify right side
    675,176.20x = 395,168,655,136.38
  5. Step 5: Solve for x
    x = 395,168,655,136.38/675,176.20
  6. Step 6: Final answer
    x = 585,282.26

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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.