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Finding the Fourth Proportional to 535,903.68, 803,104.92 and 402,699

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Solution

The fourth proportional to 535,903.68, 803,104.92 and 402,699 is: 603,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,903.68 : 803,104.92 = 402,699 : x
  2. Step 2: Convert to fraction form
    535,903.68/803,104.92 = 402,699/x
  3. Step 3: Cross multiply
    535,903.68x = 803,104.92 × 402,699
  4. Step 4: Simplify right side
    535,903.68x = 323,409,548,179.08
  5. Step 5: Solve for x
    x = 323,409,548,179.08/535,903.68
  6. Step 6: Final answer
    x = 603,484.47

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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.