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Finding the Fourth Proportional to 617,931.80, 927,243.30 and 262,885.40

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Solution

The fourth proportional to 617,931.80, 927,243.30 and 262,885.40 is: 394,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,931.80 : 927,243.30 = 262,885.40 : x
  2. Step 2: Convert to fraction form
    617,931.80/927,243.30 = 262,885.40/x
  3. Step 3: Cross multiply
    617,931.80x = 927,243.30 × 262,885.40
  4. Step 4: Simplify right side
    617,931.80x = 243,758,725,817.82
  5. Step 5: Solve for x
    x = 243,758,725,817.82/617,931.80
  6. Step 6: Final answer
    x = 394,475.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.