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Finding the Fourth Proportional to 1,244,520, 1,866,780 and 358,056

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Solution

The fourth proportional to 1,244,520, 1,866,780 and 358,056 is: 537,084

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,520 : 1,866,780 = 358,056 : x
  2. Step 2: Convert to fraction form
    1,244,520/1,866,780 = 358,056/x
  3. Step 3: Cross multiply
    1,244,520x = 1,866,780 × 358,056
  4. Step 4: Simplify right side
    1,244,520x = 668,411,779,680
  5. Step 5: Solve for x
    x = 668,411,779,680/1,244,520
  6. Step 6: Final answer
    x = 537,084

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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.