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Finding the Fourth Proportional to 1,323,655.14, 1,826,680.45 and 742,914.37

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Solution

The fourth proportional to 1,323,655.14, 1,826,680.45 and 742,914.37 is: 1,025,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,655.14 : 1,826,680.45 = 742,914.37 : x
  2. Step 2: Convert to fraction form
    1,323,655.14/1,826,680.45 = 742,914.37/x
  3. Step 3: Cross multiply
    1,323,655.14x = 1,826,680.45 × 742,914.37
  4. Step 4: Simplify right side
    1,323,655.14x = 1,357,067,158,412.48
  5. Step 5: Solve for x
    x = 1,357,067,158,412.48/1,323,655.14
  6. Step 6: Final answer
    x = 1,025,242.24

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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.