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Finding the Fourth Proportional to 602,637.45, 831,648.38 and 330,700.47

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Solution

The fourth proportional to 602,637.45, 831,648.38 and 330,700.47 is: 456,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,637.45 : 831,648.38 = 330,700.47 : x
  2. Step 2: Convert to fraction form
    602,637.45/831,648.38 = 330,700.47/x
  3. Step 3: Cross multiply
    602,637.45x = 831,648.38 × 330,700.47
  4. Step 4: Simplify right side
    602,637.45x = 275,026,508,487.24
  5. Step 5: Solve for x
    x = 275,026,508,487.24/602,637.45
  6. Step 6: Final answer
    x = 456,371.42

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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.