Home / 689,301.60-1,033,984.80-216,002.40

Finding the Fourth Proportional to 689,301.60, 1,033,984.80 and 216,002.40

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Solution

The fourth proportional to 689,301.60, 1,033,984.80 and 216,002.40 is: 324,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,301.60 : 1,033,984.80 = 216,002.40 : x
  2. Step 2: Convert to fraction form
    689,301.60/1,033,984.80 = 216,002.40/x
  3. Step 3: Cross multiply
    689,301.60x = 1,033,984.80 × 216,002.40
  4. Step 4: Simplify right side
    689,301.60x = 223,343,198,363.52
  5. Step 5: Solve for x
    x = 223,343,198,363.52/689,301.60
  6. Step 6: Final answer
    x = 324,013.75

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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.