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Finding the Fourth Proportional to 1,244,542, 1,866,813 and 358,078

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Solution

The fourth proportional to 1,244,542, 1,866,813 and 358,078 is: 537,117

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,542 : 1,866,813 = 358,078 : x
  2. Step 2: Convert to fraction form
    1,244,542/1,866,813 = 358,078/x
  3. Step 3: Cross multiply
    1,244,542x = 1,866,813 × 358,078
  4. Step 4: Simplify right side
    1,244,542x = 668,464,665,414
  5. Step 5: Solve for x
    x = 668,464,665,414/1,244,542
  6. Step 6: Final answer
    x = 537,117

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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.