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Finding the Fourth Proportional to 1,754,120, 2,631,596 and 572,168

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Solution

The fourth proportional to 1,754,120, 2,631,596 and 572,168 is: 858,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,120 : 2,631,596 = 572,168 : x
  2. Step 2: Convert to fraction form
    1,754,120/2,631,596 = 572,168/x
  3. Step 3: Cross multiply
    1,754,120x = 2,631,596 × 572,168
  4. Step 4: Simplify right side
    1,754,120x = 1,505,715,020,128
  5. Step 5: Solve for x
    x = 1,505,715,020,128/1,754,120
  6. Step 6: Final answer
    x = 858,387.69

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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.