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Finding the Fourth Proportional to 1,107,451, 1,660,041.66 and 840,646.72

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Solution

The fourth proportional to 1,107,451, 1,660,041.66 and 840,646.72 is: 1,260,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,451 : 1,660,041.66 = 840,646.72 : x
  2. Step 2: Convert to fraction form
    1,107,451/1,660,041.66 = 840,646.72/x
  3. Step 3: Cross multiply
    1,107,451x = 1,660,041.66 × 840,646.72
  4. Step 4: Simplify right side
    1,107,451x = 1,395,508,576,542.36
  5. Step 5: Solve for x
    x = 1,395,508,576,542.36/1,107,451
  6. Step 6: Final answer
    x = 1,260,108.64

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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.