Home / 689,839.15-1,034,802.50-216,543.19

Finding the Fourth Proportional to 689,839.15, 1,034,802.50 and 216,543.19

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Solution

The fourth proportional to 689,839.15, 1,034,802.50 and 216,543.19 is: 324,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,839.15 : 1,034,802.50 = 216,543.19 : x
  2. Step 2: Convert to fraction form
    689,839.15/1,034,802.50 = 216,543.19/x
  3. Step 3: Cross multiply
    689,839.15x = 1,034,802.50 × 216,543.19
  4. Step 4: Simplify right side
    689,839.15x = 224,079,434,369.98
  5. Step 5: Solve for x
    x = 224,079,434,369.98/689,839.15
  6. Step 6: Final answer
    x = 324,828.53

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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.