Home / 762,030.80-1,141,879.80-720,040.40

Finding the Fourth Proportional to 762,030.80, 1,141,879.80 and 720,040.40

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Solution

The fourth proportional to 762,030.80, 1,141,879.80 and 720,040.40 is: 1,078,958.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,030.80 : 1,141,879.80 = 720,040.40 : x
  2. Step 2: Convert to fraction form
    762,030.80/1,141,879.80 = 720,040.40/x
  3. Step 3: Cross multiply
    762,030.80x = 1,141,879.80 × 720,040.40
  4. Step 4: Simplify right side
    762,030.80x = 822,199,587,943.92
  5. Step 5: Solve for x
    x = 822,199,587,943.92/762,030.80
  6. Step 6: Final answer
    x = 1,078,958.47

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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.