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Finding the Fourth Proportional to 602,266.28, 831,128.65 and 330,336.38

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Solution

The fourth proportional to 602,266.28, 831,128.65 and 330,336.38 is: 455,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,266.28 : 831,128.65 = 330,336.38 : x
  2. Step 2: Convert to fraction form
    602,266.28/831,128.65 = 330,336.38/x
  3. Step 3: Cross multiply
    602,266.28x = 831,128.65 × 330,336.38
  4. Step 4: Simplify right side
    602,266.28x = 274,552,030,807.27
  5. Step 5: Solve for x
    x = 274,552,030,807.27/602,266.28
  6. Step 6: Final answer
    x = 455,864.86

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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.