Home / 1,376,982.10-2,065,474.77-430,357.78

Finding the Fourth Proportional to 1,376,982.10, 2,065,474.77 and 430,357.78

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Solution

The fourth proportional to 1,376,982.10, 2,065,474.77 and 430,357.78 is: 645,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,982.10 : 2,065,474.77 = 430,357.78 : x
  2. Step 2: Convert to fraction form
    1,376,982.10/2,065,474.77 = 430,357.78/x
  3. Step 3: Cross multiply
    1,376,982.10x = 2,065,474.77 × 430,357.78
  4. Step 4: Simplify right side
    1,376,982.10x = 888,893,136,663.21
  5. Step 5: Solve for x
    x = 888,893,136,663.21/1,376,982.10
  6. Step 6: Final answer
    x = 645,537.18

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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.