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Finding the Fourth Proportional to 602,686.28, 831,708.60 and 330,756.32

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Solution

The fourth proportional to 602,686.28, 831,708.60 and 330,756.32 is: 456,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,686.28 : 831,708.60 = 330,756.32 : x
  2. Step 2: Convert to fraction form
    602,686.28/831,708.60 = 330,756.32/x
  3. Step 3: Cross multiply
    602,686.28x = 831,708.60 × 330,756.32
  4. Step 4: Simplify right side
    602,686.28x = 275,092,875,848.35
  5. Step 5: Solve for x
    x = 275,092,875,848.35/602,686.28
  6. Step 6: Final answer
    x = 456,444.56

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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.