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Finding the Fourth Proportional to 602,403.79, 831,312.31 and 326,760.95

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Solution

The fourth proportional to 602,403.79, 831,312.31 and 326,760.95 is: 450,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,403.79 : 831,312.31 = 326,760.95 : x
  2. Step 2: Convert to fraction form
    602,403.79/831,312.31 = 326,760.95/x
  3. Step 3: Cross multiply
    602,403.79x = 831,312.31 × 326,760.95
  4. Step 4: Simplify right side
    602,403.79x = 271,640,400,162.30
  5. Step 5: Solve for x
    x = 271,640,400,162.30/602,403.79
  6. Step 6: Final answer
    x = 450,927.44

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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.