Home / 1,635,400.40-2,452,225.80-687,700.40

Finding the Fourth Proportional to 1,635,400.40, 2,452,225.80 and 687,700.40

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Solution

The fourth proportional to 1,635,400.40, 2,452,225.80 and 687,700.40 is: 1,031,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635,400.40 : 2,452,225.80 = 687,700.40 : x
  2. Step 2: Convert to fraction form
    1,635,400.40/2,452,225.80 = 687,700.40/x
  3. Step 3: Cross multiply
    1,635,400.40x = 2,452,225.80 × 687,700.40
  4. Step 4: Simplify right side
    1,635,400.40x = 1,686,396,663,550.32
  5. Step 5: Solve for x
    x = 1,686,396,663,550.32/1,635,400.40
  6. Step 6: Final answer
    x = 1,031,182.74

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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.