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Finding the Fourth Proportional to 1,869,854.52, 2,807,270.82 and 1,264,675.80

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Solution

The fourth proportional to 1,869,854.52, 2,807,270.82 and 1,264,675.80 is: 1,898,697.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,854.52 : 2,807,270.82 = 1,264,675.80 : x
  2. Step 2: Convert to fraction form
    1,869,854.52/2,807,270.82 = 1,264,675.80/x
  3. Step 3: Cross multiply
    1,869,854.52x = 2,807,270.82 × 1,264,675.80
  4. Step 4: Simplify right side
    1,869,854.52x = 3,550,287,470,100.16
  5. Step 5: Solve for x
    x = 3,550,287,470,100.16/1,869,854.52
  6. Step 6: Final answer
    x = 1,898,697.16

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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.