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Finding the Fourth Proportional to 404,521.08, 558,003.40 and 259,275.12

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Solution

The fourth proportional to 404,521.08, 558,003.40 and 259,275.12 is: 357,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,521.08 : 558,003.40 = 259,275.12 : x
  2. Step 2: Convert to fraction form
    404,521.08/558,003.40 = 259,275.12/x
  3. Step 3: Cross multiply
    404,521.08x = 558,003.40 × 259,275.12
  4. Step 4: Simplify right side
    404,521.08x = 144,676,398,495.41
  5. Step 5: Solve for x
    x = 144,676,398,495.41/404,521.08
  6. Step 6: Final answer
    x = 357,648.60

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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.