Home / 1,292,253.76-1,783,309.98-719,281.72

Finding the Fourth Proportional to 1,292,253.76, 1,783,309.98 and 719,281.72

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Solution

The fourth proportional to 1,292,253.76, 1,783,309.98 and 719,281.72 is: 992,608.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,253.76 : 1,783,309.98 = 719,281.72 : x
  2. Step 2: Convert to fraction form
    1,292,253.76/1,783,309.98 = 719,281.72/x
  3. Step 3: Cross multiply
    1,292,253.76x = 1,783,309.98 × 719,281.72
  4. Step 4: Simplify right side
    1,292,253.76x = 1,282,702,269,707.57
  5. Step 5: Solve for x
    x = 1,282,702,269,707.57/1,292,253.76
  6. Step 6: Final answer
    x = 992,608.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.