Home / 565,826.13-780,845.60-307,708.63

Finding the Fourth Proportional to 565,826.13, 780,845.60 and 307,708.63

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Solution

The fourth proportional to 565,826.13, 780,845.60 and 307,708.63 is: 424,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,826.13 : 780,845.60 = 307,708.63 : x
  2. Step 2: Convert to fraction form
    565,826.13/780,845.60 = 307,708.63/x
  3. Step 3: Cross multiply
    565,826.13x = 780,845.60 × 307,708.63
  4. Step 4: Simplify right side
    565,826.13x = 240,272,929,817.53
  5. Step 5: Solve for x
    x = 240,272,929,817.53/565,826.13
  6. Step 6: Final answer
    x = 424,640.92

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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.