Home / 710,923.20-1,065,002.40-394,814.40

Finding the Fourth Proportional to 710,923.20, 1,065,002.40 and 394,814.40

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Solution

The fourth proportional to 710,923.20, 1,065,002.40 and 394,814.40 is: 591,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,923.20 : 1,065,002.40 = 394,814.40 : x
  2. Step 2: Convert to fraction form
    710,923.20/1,065,002.40 = 394,814.40/x
  3. Step 3: Cross multiply
    710,923.20x = 1,065,002.40 × 394,814.40
  4. Step 4: Simplify right side
    710,923.20x = 420,478,283,554.56
  5. Step 5: Solve for x
    x = 420,478,283,554.56/710,923.20
  6. Step 6: Final answer
    x = 591,453.88

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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.