Home / 717,879.60-1,076,814.54-342,765.36

Finding the Fourth Proportional to 717,879.60, 1,076,814.54 and 342,765.36

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Solution

The fourth proportional to 717,879.60, 1,076,814.54 and 342,765.36 is: 514,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,879.60 : 1,076,814.54 = 342,765.36 : x
  2. Step 2: Convert to fraction form
    717,879.60/1,076,814.54 = 342,765.36/x
  3. Step 3: Cross multiply
    717,879.60x = 1,076,814.54 × 342,765.36
  4. Step 4: Simplify right side
    717,879.60x = 369,094,723,456.33
  5. Step 5: Solve for x
    x = 369,094,723,456.33/717,879.60
  6. Step 6: Final answer
    x = 514,145.72

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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.