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Finding the Fourth Proportional to 602,388.40, 831,302.48 and 330,456.88

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Solution

The fourth proportional to 602,388.40, 831,302.48 and 330,456.88 is: 456,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,388.40 : 831,302.48 = 330,456.88 : x
  2. Step 2: Convert to fraction form
    602,388.40/831,302.48 = 330,456.88/x
  3. Step 3: Cross multiply
    602,388.40x = 831,302.48 × 330,456.88
  4. Step 4: Simplify right side
    602,388.40x = 274,709,623,877.06
  5. Step 5: Solve for x
    x = 274,709,623,877.06/602,388.40
  6. Step 6: Final answer
    x = 456,034.05

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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.