Home / 1,949,578.91-2,690,211.76-1,078,275.15

Finding the Fourth Proportional to 1,949,578.91, 2,690,211.76 and 1,078,275.15

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Solution

The fourth proportional to 1,949,578.91, 2,690,211.76 and 1,078,275.15 is: 1,487,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,578.91 : 2,690,211.76 = 1,078,275.15 : x
  2. Step 2: Convert to fraction form
    1,949,578.91/2,690,211.76 = 1,078,275.15/x
  3. Step 3: Cross multiply
    1,949,578.91x = 2,690,211.76 × 1,078,275.15
  4. Step 4: Simplify right side
    1,949,578.91x = 2,900,788,475,594.71
  5. Step 5: Solve for x
    x = 2,900,788,475,594.71/1,949,578.91
  6. Step 6: Final answer
    x = 1,487,905.14

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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.