Home / 732,315.60-1,099,121.40-432,421.20

Finding the Fourth Proportional to 732,315.60, 1,099,121.40 and 432,421.20

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Solution

The fourth proportional to 732,315.60, 1,099,121.40 and 432,421.20 is: 649,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,315.60 : 1,099,121.40 = 432,421.20 : x
  2. Step 2: Convert to fraction form
    732,315.60/1,099,121.40 = 432,421.20/x
  3. Step 3: Cross multiply
    732,315.60x = 1,099,121.40 × 432,421.20
  4. Step 4: Simplify right side
    732,315.60x = 475,283,394,733.68
  5. Step 5: Solve for x
    x = 475,283,394,733.68/732,315.60
  6. Step 6: Final answer
    x = 649,014.43

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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.