Home / 875,339.52-1,207,968.78-472,931.52

Finding the Fourth Proportional to 875,339.52, 1,207,968.78 and 472,931.52

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Solution

The fourth proportional to 875,339.52, 1,207,968.78 and 472,931.52 is: 652,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,339.52 : 1,207,968.78 = 472,931.52 : x
  2. Step 2: Convert to fraction form
    875,339.52/1,207,968.78 = 472,931.52/x
  3. Step 3: Cross multiply
    875,339.52x = 1,207,968.78 × 472,931.52
  4. Step 4: Simplify right side
    875,339.52x = 571,286,511,237.95
  5. Step 5: Solve for x
    x = 571,286,511,237.95/875,339.52
  6. Step 6: Final answer
    x = 652,645.63

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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.