Home / 847,952.70-1,272,913.20-511,373.40

Finding the Fourth Proportional to 847,952.70, 1,272,913.20 and 511,373.40

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Solution

The fourth proportional to 847,952.70, 1,272,913.20 and 511,373.40 is: 767,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,952.70 : 1,272,913.20 = 511,373.40 : x
  2. Step 2: Convert to fraction form
    847,952.70/1,272,913.20 = 511,373.40/x
  3. Step 3: Cross multiply
    847,952.70x = 1,272,913.20 × 511,373.40
  4. Step 4: Simplify right side
    847,952.70x = 650,933,950,988.88
  5. Step 5: Solve for x
    x = 650,933,950,988.88/847,952.70
  6. Step 6: Final answer
    x = 767,653.61

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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.