Home / 825,721.20-1,239,733.80-528,044.40

Finding the Fourth Proportional to 825,721.20, 1,239,733.80 and 528,044.40

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Solution

The fourth proportional to 825,721.20, 1,239,733.80 and 528,044.40 is: 792,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,721.20 : 1,239,733.80 = 528,044.40 : x
  2. Step 2: Convert to fraction form
    825,721.20/1,239,733.80 = 528,044.40/x
  3. Step 3: Cross multiply
    825,721.20x = 1,239,733.80 × 528,044.40
  4. Step 4: Simplify right side
    825,721.20x = 654,634,490,580.72
  5. Step 5: Solve for x
    x = 654,634,490,580.72/825,721.20
  6. Step 6: Final answer
    x = 792,803.30

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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.