Home / 727,713.20-1,091,569.80-328,804.40

Finding the Fourth Proportional to 727,713.20, 1,091,569.80 and 328,804.40

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Solution

The fourth proportional to 727,713.20, 1,091,569.80 and 328,804.40 is: 493,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,713.20 : 1,091,569.80 = 328,804.40 : x
  2. Step 2: Convert to fraction form
    727,713.20/1,091,569.80 = 328,804.40/x
  3. Step 3: Cross multiply
    727,713.20x = 1,091,569.80 × 328,804.40
  4. Step 4: Simplify right side
    727,713.20x = 358,912,953,147.12
  5. Step 5: Solve for x
    x = 358,912,953,147.12/727,713.20
  6. Step 6: Final answer
    x = 493,206.60

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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.