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Finding the Fourth Proportional to 1,238,355, 1,707,347.86 and 802,001.32

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Solution

The fourth proportional to 1,238,355, 1,707,347.86 and 802,001.32 is: 1,105,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,355 : 1,707,347.86 = 802,001.32 : x
  2. Step 2: Convert to fraction form
    1,238,355/1,707,347.86 = 802,001.32/x
  3. Step 3: Cross multiply
    1,238,355x = 1,707,347.86 × 802,001.32
  4. Step 4: Simplify right side
    1,238,355x = 1,369,295,237,419.18
  5. Step 5: Solve for x
    x = 1,369,295,237,419.18/1,238,355
  6. Step 6: Final answer
    x = 1,105,737.24

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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.