Home / 1,449,345.62-2,172,875.07-915,742.10

Finding the Fourth Proportional to 1,449,345.62, 2,172,875.07 and 915,742.10

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Solution

The fourth proportional to 1,449,345.62, 2,172,875.07 and 915,742.10 is: 1,372,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,345.62 : 2,172,875.07 = 915,742.10 : x
  2. Step 2: Convert to fraction form
    1,449,345.62/2,172,875.07 = 915,742.10/x
  3. Step 3: Cross multiply
    1,449,345.62x = 2,172,875.07 × 915,742.10
  4. Step 4: Simplify right side
    1,449,345.62x = 1,989,793,179,639.45
  5. Step 5: Solve for x
    x = 1,989,793,179,639.45/1,449,345.62
  6. Step 6: Final answer
    x = 1,372,890.74

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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.