Home / 804,315.20-1,207,394.40-472,078.40

Finding the Fourth Proportional to 804,315.20, 1,207,394.40 and 472,078.40

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Solution

The fourth proportional to 804,315.20, 1,207,394.40 and 472,078.40 is: 708,658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,315.20 : 1,207,394.40 = 472,078.40 : x
  2. Step 2: Convert to fraction form
    804,315.20/1,207,394.40 = 472,078.40/x
  3. Step 3: Cross multiply
    804,315.20x = 1,207,394.40 × 472,078.40
  4. Step 4: Simplify right side
    804,315.20x = 569,984,816,520.96
  5. Step 5: Solve for x
    x = 569,984,816,520.96/804,315.20
  6. Step 6: Final answer
    x = 708,658.52

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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.