Home / 805,271.60-1,207,907.40-432,023.60

Finding the Fourth Proportional to 805,271.60, 1,207,907.40 and 432,023.60

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Solution

The fourth proportional to 805,271.60, 1,207,907.40 and 432,023.60 is: 648,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,271.60 : 1,207,907.40 = 432,023.60 : x
  2. Step 2: Convert to fraction form
    805,271.60/1,207,907.40 = 432,023.60/x
  3. Step 3: Cross multiply
    805,271.60x = 1,207,907.40 × 432,023.60
  4. Step 4: Simplify right side
    805,271.60x = 521,844,503,414.64
  5. Step 5: Solve for x
    x = 521,844,503,414.64/805,271.60
  6. Step 6: Final answer
    x = 648,035.40

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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.