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Finding the Fourth Proportional to 720,102.10, 1,079,139.03 and 550,967.62

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Solution

The fourth proportional to 720,102.10, 1,079,139.03 and 550,967.62 is: 825,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,102.10 : 1,079,139.03 = 550,967.62 : x
  2. Step 2: Convert to fraction form
    720,102.10/1,079,139.03 = 550,967.62/x
  3. Step 3: Cross multiply
    720,102.10x = 1,079,139.03 × 550,967.62
  4. Step 4: Simplify right side
    720,102.10x = 594,570,663,008.21
  5. Step 5: Solve for x
    x = 594,570,663,008.21/720,102.10
  6. Step 6: Final answer
    x = 825,675.50

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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.