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Finding the Fourth Proportional to 612,070.46, 844,661.90 and 340,163.86

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Solution

The fourth proportional to 612,070.46, 844,661.90 and 340,163.86 is: 469,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,070.46 : 844,661.90 = 340,163.86 : x
  2. Step 2: Convert to fraction form
    612,070.46/844,661.90 = 340,163.86/x
  3. Step 3: Cross multiply
    612,070.46x = 844,661.90 × 340,163.86
  4. Step 4: Simplify right side
    612,070.46x = 287,323,452,298.93
  5. Step 5: Solve for x
    x = 287,323,452,298.93/612,070.46
  6. Step 6: Final answer
    x = 469,428.72

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1.5x scale

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.