Home / 1,376,981.10-2,065,473.27-430,356.78

Finding the Fourth Proportional to 1,376,981.10, 2,065,473.27 and 430,356.78

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Solution

The fourth proportional to 1,376,981.10, 2,065,473.27 and 430,356.78 is: 645,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,981.10 : 2,065,473.27 = 430,356.78 : x
  2. Step 2: Convert to fraction form
    1,376,981.10/2,065,473.27 = 430,356.78/x
  3. Step 3: Cross multiply
    1,376,981.10x = 2,065,473.27 × 430,356.78
  4. Step 4: Simplify right side
    1,376,981.10x = 888,890,425,653.27
  5. Step 5: Solve for x
    x = 888,890,425,653.27/1,376,981.10
  6. Step 6: Final answer
    x = 645,535.68

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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.