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Finding the Fourth Proportional to 710,246.80, 979,885.92 and 419,797.54

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Solution

The fourth proportional to 710,246.80, 979,885.92 and 419,797.54 is: 579,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,246.80 : 979,885.92 = 419,797.54 : x
  2. Step 2: Convert to fraction form
    710,246.80/979,885.92 = 419,797.54/x
  3. Step 3: Cross multiply
    710,246.80x = 979,885.92 × 419,797.54
  4. Step 4: Simplify right side
    710,246.80x = 411,353,698,696.64
  5. Step 5: Solve for x
    x = 411,353,698,696.64/710,246.80
  6. Step 6: Final answer
    x = 579,170.08

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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.