Home / 719,816.90-1,080,379.69-383,139.18

Finding the Fourth Proportional to 719,816.90, 1,080,379.69 and 383,139.18

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Solution

The fourth proportional to 719,816.90, 1,080,379.69 and 383,139.18 is: 575,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,816.90 : 1,080,379.69 = 383,139.18 : x
  2. Step 2: Convert to fraction form
    719,816.90/1,080,379.69 = 383,139.18/x
  3. Step 3: Cross multiply
    719,816.90x = 1,080,379.69 × 383,139.18
  4. Step 4: Simplify right side
    719,816.90x = 413,935,787,557.41
  5. Step 5: Solve for x
    x = 413,935,787,557.41/719,816.90
  6. Step 6: Final answer
    x = 575,057.06

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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.