Home / 1,315,229.45-1,814,979.87-742,322.93

Finding the Fourth Proportional to 1,315,229.45, 1,814,979.87 and 742,322.93

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Solution

The fourth proportional to 1,315,229.45, 1,814,979.87 and 742,322.93 is: 1,024,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,229.45 : 1,814,979.87 = 742,322.93 : x
  2. Step 2: Convert to fraction form
    1,315,229.45/1,814,979.87 = 742,322.93/x
  3. Step 3: Cross multiply
    1,315,229.45x = 1,814,979.87 × 742,322.93
  4. Step 4: Simplify right side
    1,315,229.45x = 1,347,301,165,914.52
  5. Step 5: Solve for x
    x = 1,347,301,165,914.52/1,315,229.45
  6. Step 6: Final answer
    x = 1,024,384.89

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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.