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Finding the Fourth Proportional to 618,486.10, 867,124.70 and 618,486.10

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Solution

The fourth proportional to 618,486.10, 867,124.70 and 618,486.10 is: 867,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,486.10 : 867,124.70 = 618,486.10 : x
  2. Step 2: Convert to fraction form
    618,486.10/867,124.70 = 618,486.10/x
  3. Step 3: Cross multiply
    618,486.10x = 867,124.70 × 618,486.10
  4. Step 4: Simplify right side
    618,486.10x = 536,304,573,916.67
  5. Step 5: Solve for x
    x = 536,304,573,916.67/618,486.10
  6. Step 6: Final answer
    x = 867,124.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.