Home / 709,333.20-1,063,999.80-644,014.80

Finding the Fourth Proportional to 709,333.20, 1,063,999.80 and 644,014.80

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Solution

The fourth proportional to 709,333.20, 1,063,999.80 and 644,014.80 is: 966,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,333.20 : 1,063,999.80 = 644,014.80 : x
  2. Step 2: Convert to fraction form
    709,333.20/1,063,999.80 = 644,014.80/x
  3. Step 3: Cross multiply
    709,333.20x = 1,063,999.80 × 644,014.80
  4. Step 4: Simplify right side
    709,333.20x = 685,231,618,397.04
  5. Step 5: Solve for x
    x = 685,231,618,397.04/709,333.20
  6. Step 6: Final answer
    x = 966,022.20

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1.5x scale

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.