Home / 875,390.90-1,313,201.18-342,842.72

Finding the Fourth Proportional to 875,390.90, 1,313,201.18 and 342,842.72

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Solution

The fourth proportional to 875,390.90, 1,313,201.18 and 342,842.72 is: 514,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,390.90 : 1,313,201.18 = 342,842.72 : x
  2. Step 2: Convert to fraction form
    875,390.90/1,313,201.18 = 342,842.72/x
  3. Step 3: Cross multiply
    875,390.90x = 1,313,201.18 × 342,842.72
  4. Step 4: Simplify right side
    875,390.90x = 450,221,464,458.41
  5. Step 5: Solve for x
    x = 450,221,464,458.41/875,390.90
  6. Step 6: Final answer
    x = 514,309.05

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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.