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Finding the Fourth Proportional to 720,106.10, 1,079,145.02 and 550,971.62

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Solution

The fourth proportional to 720,106.10, 1,079,145.02 and 550,971.62 is: 825,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,106.10 : 1,079,145.02 = 550,971.62 : x
  2. Step 2: Convert to fraction form
    720,106.10/1,079,145.02 = 550,971.62/x
  3. Step 3: Cross multiply
    720,106.10x = 1,079,145.02 × 550,971.62
  4. Step 4: Simplify right side
    720,106.10x = 594,578,279,884.33
  5. Step 5: Solve for x
    x = 594,578,279,884.33/720,106.10
  6. Step 6: Final answer
    x = 825,681.49

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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.