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Finding the Fourth Proportional to 458,599, 632,926.56 and 257,395

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Solution

The fourth proportional to 458,599, 632,926.56 and 257,395 is: 355,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,599 : 632,926.56 = 257,395 : x
  2. Step 2: Convert to fraction form
    458,599/632,926.56 = 257,395/x
  3. Step 3: Cross multiply
    458,599x = 632,926.56 × 257,395
  4. Step 4: Simplify right side
    458,599x = 162,912,131,911.20
  5. Step 5: Solve for x
    x = 162,912,131,911.20/458,599
  6. Step 6: Final answer
    x = 355,238.74

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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.