Home / 749,584.07-1,124,392.51-300,516.43

Finding the Fourth Proportional to 749,584.07, 1,124,392.51 and 300,516.43

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Solution

The fourth proportional to 749,584.07, 1,124,392.51 and 300,516.43 is: 450,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,584.07 : 1,124,392.51 = 300,516.43 : x
  2. Step 2: Convert to fraction form
    749,584.07/1,124,392.51 = 300,516.43/x
  3. Step 3: Cross multiply
    749,584.07x = 1,124,392.51 × 300,516.43
  4. Step 4: Simplify right side
    749,584.07x = 337,898,417,401.98
  5. Step 5: Solve for x
    x = 337,898,417,401.98/749,584.07
  6. Step 6: Final answer
    x = 450,781.21

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Double scale
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Similar ratio
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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.