Home / 857,079.90-1,285,619.85-718,148.70

Finding the Fourth Proportional to 857,079.90, 1,285,619.85 and 718,148.70

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Solution

The fourth proportional to 857,079.90, 1,285,619.85 and 718,148.70 is: 1,077,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,079.90 : 1,285,619.85 = 718,148.70 : x
  2. Step 2: Convert to fraction form
    857,079.90/1,285,619.85 = 718,148.70/x
  3. Step 3: Cross multiply
    857,079.90x = 1,285,619.85 × 718,148.70
  4. Step 4: Simplify right side
    857,079.90x = 923,266,223,971.70
  5. Step 5: Solve for x
    x = 923,266,223,971.70/857,079.90
  6. Step 6: Final answer
    x = 1,077,223.05

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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.