Home / 1,521,423.07-2,099,731.48-970,159.07

Finding the Fourth Proportional to 1,521,423.07, 2,099,731.48 and 970,159.07

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Solution

The fourth proportional to 1,521,423.07, 2,099,731.48 and 970,159.07 is: 1,338,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,423.07 : 2,099,731.48 = 970,159.07 : x
  2. Step 2: Convert to fraction form
    1,521,423.07/2,099,731.48 = 970,159.07/x
  3. Step 3: Cross multiply
    1,521,423.07x = 2,099,731.48 × 970,159.07
  4. Step 4: Simplify right side
    1,521,423.07x = 2,037,073,542,710.45
  5. Step 5: Solve for x
    x = 2,037,073,542,710.45/1,521,423.07
  6. Step 6: Final answer
    x = 1,338,926.42

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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.