Home / 1,251,598.92-1,727,209.80-678,639.12

Finding the Fourth Proportional to 1,251,598.92, 1,727,209.80 and 678,639.12

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Solution

The fourth proportional to 1,251,598.92, 1,727,209.80 and 678,639.12 is: 936,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,598.92 : 1,727,209.80 = 678,639.12 : x
  2. Step 2: Convert to fraction form
    1,251,598.92/1,727,209.80 = 678,639.12/x
  3. Step 3: Cross multiply
    1,251,598.92x = 1,727,209.80 × 678,639.12
  4. Step 4: Simplify right side
    1,251,598.92x = 1,172,152,138,727.38
  5. Step 5: Solve for x
    x = 1,172,152,138,727.38/1,251,598.92
  6. Step 6: Final answer
    x = 936,523.77

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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.