Home / 847,162.72-1,270,370.92-398,011.28

Finding the Fourth Proportional to 847,162.72, 1,270,370.92 and 398,011.28

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Solution

The fourth proportional to 847,162.72, 1,270,370.92 and 398,011.28 is: 596,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,162.72 : 1,270,370.92 = 398,011.28 : x
  2. Step 2: Convert to fraction form
    847,162.72/1,270,370.92 = 398,011.28/x
  3. Step 3: Cross multiply
    847,162.72x = 1,270,370.92 × 398,011.28
  4. Step 4: Simplify right side
    847,162.72x = 505,621,955,943.98
  5. Step 5: Solve for x
    x = 505,621,955,943.98/847,162.72
  6. Step 6: Final answer
    x = 596,841.60

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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.