Home / 763,133.18-1,144,724.13-383,846.78

Finding the Fourth Proportional to 763,133.18, 1,144,724.13 and 383,846.78

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Solution

The fourth proportional to 763,133.18, 1,144,724.13 and 383,846.78 is: 575,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,133.18 : 1,144,724.13 = 383,846.78 : x
  2. Step 2: Convert to fraction form
    763,133.18/1,144,724.13 = 383,846.78/x
  3. Step 3: Cross multiply
    763,133.18x = 1,144,724.13 × 383,846.78
  4. Step 4: Simplify right side
    763,133.18x = 439,398,674,150.61
  5. Step 5: Solve for x
    x = 439,398,674,150.61/763,133.18
  6. Step 6: Final answer
    x = 575,782.43

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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.