Home / 878,439.50-1,212,246.51-476,031.50

Finding the Fourth Proportional to 878,439.50, 1,212,246.51 and 476,031.50

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Solution

The fourth proportional to 878,439.50, 1,212,246.51 and 476,031.50 is: 656,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,439.50 : 1,212,246.51 = 476,031.50 : x
  2. Step 2: Convert to fraction form
    878,439.50/1,212,246.51 = 476,031.50/x
  3. Step 3: Cross multiply
    878,439.50x = 1,212,246.51 × 476,031.50
  4. Step 4: Simplify right side
    878,439.50x = 577,067,524,525.07
  5. Step 5: Solve for x
    x = 577,067,524,525.07/878,439.50
  6. Step 6: Final answer
    x = 656,923.47

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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.