Home / 2,257,612.45-3,386,935.77-978,434.49

Finding the Fourth Proportional to 2,257,612.45, 3,386,935.77 and 978,434.49

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Solution

The fourth proportional to 2,257,612.45, 3,386,935.77 and 978,434.49 is: 1,467,875.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257,612.45 : 3,386,935.77 = 978,434.49 : x
  2. Step 2: Convert to fraction form
    2,257,612.45/3,386,935.77 = 978,434.49/x
  3. Step 3: Cross multiply
    2,257,612.45x = 3,386,935.77 × 978,434.49
  4. Step 4: Simplify right side
    2,257,612.45x = 3,313,894,772,782.71
  5. Step 5: Solve for x
    x = 3,313,894,772,782.71/2,257,612.45
  6. Step 6: Final answer
    x = 1,467,875.84

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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.