Home / 1,688,988.80-2,534,523.05-664,138.73

Finding the Fourth Proportional to 1,688,988.80, 2,534,523.05 and 664,138.73

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Solution

The fourth proportional to 1,688,988.80, 2,534,523.05 and 664,138.73 is: 996,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,988.80 : 2,534,523.05 = 664,138.73 : x
  2. Step 2: Convert to fraction form
    1,688,988.80/2,534,523.05 = 664,138.73/x
  3. Step 3: Cross multiply
    1,688,988.80x = 2,534,523.05 × 664,138.73
  4. Step 4: Simplify right side
    1,688,988.80x = 1,683,274,908,341.65
  5. Step 5: Solve for x
    x = 1,683,274,908,341.65/1,688,988.80
  6. Step 6: Final answer
    x = 996,616.98

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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.