Home / 878,439.52-1,212,247.94-476,031.52

Finding the Fourth Proportional to 878,439.52, 1,212,247.94 and 476,031.52

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Solution

The fourth proportional to 878,439.52, 1,212,247.94 and 476,031.52 is: 656,924.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,439.52 : 1,212,247.94 = 476,031.52 : x
  2. Step 2: Convert to fraction form
    878,439.52/1,212,247.94 = 476,031.52/x
  3. Step 3: Cross multiply
    878,439.52x = 1,212,247.94 × 476,031.52
  4. Step 4: Simplify right side
    878,439.52x = 577,068,229,495.07
  5. Step 5: Solve for x
    x = 577,068,229,495.07/878,439.52
  6. Step 6: Final answer
    x = 656,924.26

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1.5x scale

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.