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Finding the Fourth Proportional to 565,717.20, 780,495.48 and 350,779.92

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Solution

The fourth proportional to 565,717.20, 780,495.48 and 350,779.92 is: 483,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,717.20 : 780,495.48 = 350,779.92 : x
  2. Step 2: Convert to fraction form
    565,717.20/780,495.48 = 350,779.92/x
  3. Step 3: Cross multiply
    565,717.20x = 780,495.48 × 350,779.92
  4. Step 4: Simplify right side
    565,717.20x = 273,782,142,034.76
  5. Step 5: Solve for x
    x = 273,782,142,034.76/565,717.20
  6. Step 6: Final answer
    x = 483,955.84

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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.