Home / 2,139,412.26-2,952,412.02-1,172,521.74

Finding the Fourth Proportional to 2,139,412.26, 2,952,412.02 and 1,172,521.74

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Solution

The fourth proportional to 2,139,412.26, 2,952,412.02 and 1,172,521.74 is: 1,618,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,412.26 : 2,952,412.02 = 1,172,521.74 : x
  2. Step 2: Convert to fraction form
    2,139,412.26/2,952,412.02 = 1,172,521.74/x
  3. Step 3: Cross multiply
    2,139,412.26x = 2,952,412.02 × 1,172,521.74
  4. Step 4: Simplify right side
    2,139,412.26x = 3,461,767,278,887.32
  5. Step 5: Solve for x
    x = 3,461,767,278,887.32/2,139,412.26
  6. Step 6: Final answer
    x = 1,618,092.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.