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Finding the Fourth Proportional to 616,407.32, 850,658.94 and 348,135.32

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Solution

The fourth proportional to 616,407.32, 850,658.94 and 348,135.32 is: 480,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,407.32 : 850,658.94 = 348,135.32 : x
  2. Step 2: Convert to fraction form
    616,407.32/850,658.94 = 348,135.32/x
  3. Step 3: Cross multiply
    616,407.32x = 850,658.94 × 348,135.32
  4. Step 4: Simplify right side
    616,407.32x = 296,144,422,287.76
  5. Step 5: Solve for x
    x = 296,144,422,287.76/616,407.32
  6. Step 6: Final answer
    x = 480,436.25

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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.