Home / 847,811.70-1,272,701.70-511,232.40

Finding the Fourth Proportional to 847,811.70, 1,272,701.70 and 511,232.40

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Solution

The fourth proportional to 847,811.70, 1,272,701.70 and 511,232.40 is: 767,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,811.70 : 1,272,701.70 = 511,232.40 : x
  2. Step 2: Convert to fraction form
    847,811.70/1,272,701.70 = 511,232.40/x
  3. Step 3: Cross multiply
    847,811.70x = 1,272,701.70 × 511,232.40
  4. Step 4: Simplify right side
    847,811.70x = 650,646,344,575.08
  5. Step 5: Solve for x
    x = 650,646,344,575.08/847,811.70
  6. Step 6: Final answer
    x = 767,442.04

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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.