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Finding the Fourth Proportional to 535,280.64, 738,567.63 and 305,764.56

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Solution

The fourth proportional to 535,280.64, 738,567.63 and 305,764.56 is: 421,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,280.64 : 738,567.63 = 305,764.56 : x
  2. Step 2: Convert to fraction form
    535,280.64/738,567.63 = 305,764.56/x
  3. Step 3: Cross multiply
    535,280.64x = 738,567.63 × 305,764.56
  4. Step 4: Simplify right side
    535,280.64x = 225,827,806,417.19
  5. Step 5: Solve for x
    x = 225,827,806,417.19/535,280.64
  6. Step 6: Final answer
    x = 421,886.74

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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.