Home / 753,408.33-1,129,271.87-326,451.26

Finding the Fourth Proportional to 753,408.33, 1,129,271.87 and 326,451.26

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Solution

The fourth proportional to 753,408.33, 1,129,271.87 and 326,451.26 is: 489,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,408.33 : 1,129,271.87 = 326,451.26 : x
  2. Step 2: Convert to fraction form
    753,408.33/1,129,271.87 = 326,451.26/x
  3. Step 3: Cross multiply
    753,408.33x = 1,129,271.87 × 326,451.26
  4. Step 4: Simplify right side
    753,408.33x = 368,652,219,197.70
  5. Step 5: Solve for x
    x = 368,652,219,197.70/753,408.33
  6. Step 6: Final answer
    x = 489,312.64

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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.