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Finding the Fourth Proportional to 616,701.60, 851,083.20 and 348,429.60

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Solution

The fourth proportional to 616,701.60, 851,083.20 and 348,429.60 is: 480,852.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,701.60 : 851,083.20 = 348,429.60 : x
  2. Step 2: Convert to fraction form
    616,701.60/851,083.20 = 348,429.60/x
  3. Step 3: Cross multiply
    616,701.60x = 851,083.20 × 348,429.60
  4. Step 4: Simplify right side
    616,701.60x = 296,542,578,942.72
  5. Step 5: Solve for x
    x = 296,542,578,942.72/616,701.60
  6. Step 6: Final answer
    x = 480,852.62

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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.