Home / 712,729.80-1,069,094.70-707,814.60

Finding the Fourth Proportional to 712,729.80, 1,069,094.70 and 707,814.60

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Solution

The fourth proportional to 712,729.80, 1,069,094.70 and 707,814.60 is: 1,061,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,729.80 : 1,069,094.70 = 707,814.60 : x
  2. Step 2: Convert to fraction form
    712,729.80/1,069,094.70 = 707,814.60/x
  3. Step 3: Cross multiply
    712,729.80x = 1,069,094.70 × 707,814.60
  4. Step 4: Simplify right side
    712,729.80x = 756,720,837,442.62
  5. Step 5: Solve for x
    x = 756,720,837,442.62/712,729.80
  6. Step 6: Final answer
    x = 1,061,721.90

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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.