Home / 781,784.34-1,172,688.86-308,465.61

Finding the Fourth Proportional to 781,784.34, 1,172,688.86 and 308,465.61

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Solution

The fourth proportional to 781,784.34, 1,172,688.86 and 308,465.61 is: 462,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,784.34 : 1,172,688.86 = 308,465.61 : x
  2. Step 2: Convert to fraction form
    781,784.34/1,172,688.86 = 308,465.61/x
  3. Step 3: Cross multiply
    781,784.34x = 1,172,688.86 × 308,465.61
  4. Step 4: Simplify right side
    781,784.34x = 361,734,184,540.11
  5. Step 5: Solve for x
    x = 361,734,184,540.11/781,784.34
  6. Step 6: Final answer
    x = 462,703.29

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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.