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Finding the Fourth Proportional to 1,345,393.51, 1,856,657.53 and 733,541.28

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Solution

The fourth proportional to 1,345,393.51, 1,856,657.53 and 733,541.28 is: 1,012,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,393.51 : 1,856,657.53 = 733,541.28 : x
  2. Step 2: Convert to fraction form
    1,345,393.51/1,856,657.53 = 733,541.28/x
  3. Step 3: Cross multiply
    1,345,393.51x = 1,856,657.53 × 733,541.28
  4. Step 4: Simplify right side
    1,345,393.51x = 1,361,934,935,032.30
  5. Step 5: Solve for x
    x = 1,361,934,935,032.30/1,345,393.51
  6. Step 6: Final answer
    x = 1,012,294.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.