Home / 735,909.12-1,104,289.20-309,411.36

Finding the Fourth Proportional to 735,909.12, 1,104,289.20 and 309,411.36

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Solution

The fourth proportional to 735,909.12, 1,104,289.20 and 309,411.36 is: 464,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,909.12 : 1,104,289.20 = 309,411.36 : x
  2. Step 2: Convert to fraction form
    735,909.12/1,104,289.20 = 309,411.36/x
  3. Step 3: Cross multiply
    735,909.12x = 1,104,289.20 × 309,411.36
  4. Step 4: Simplify right side
    735,909.12x = 341,679,623,205.31
  5. Step 5: Solve for x
    x = 341,679,623,205.31/735,909.12
  6. Step 6: Final answer
    x = 464,295.95

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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.