Home / 753,407.83-1,129,271.12-326,450.76

Finding the Fourth Proportional to 753,407.83, 1,129,271.12 and 326,450.76

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Solution

The fourth proportional to 753,407.83, 1,129,271.12 and 326,450.76 is: 489,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,407.83 : 1,129,271.12 = 326,450.76 : x
  2. Step 2: Convert to fraction form
    753,407.83/1,129,271.12 = 326,450.76/x
  3. Step 3: Cross multiply
    753,407.83x = 1,129,271.12 × 326,450.76
  4. Step 4: Simplify right side
    753,407.83x = 368,651,410,727.22
  5. Step 5: Solve for x
    x = 368,651,410,727.22/753,407.83
  6. Step 6: Final answer
    x = 489,311.89

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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.