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Finding the Fourth Proportional to 710,117.65, 979,968.62 and 404,213.73

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Solution

The fourth proportional to 710,117.65, 979,968.62 and 404,213.73 is: 557,818.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,117.65 : 979,968.62 = 404,213.73 : x
  2. Step 2: Convert to fraction form
    710,117.65/979,968.62 = 404,213.73/x
  3. Step 3: Cross multiply
    710,117.65x = 979,968.62 × 404,213.73
  4. Step 4: Simplify right side
    710,117.65x = 396,116,764,252.24
  5. Step 5: Solve for x
    x = 396,116,764,252.24/710,117.65
  6. Step 6: Final answer
    x = 557,818.51

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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.