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Finding the Fourth Proportional to 1,345,547.03, 1,855,346.48 and 1,099,769.24

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Solution

The fourth proportional to 1,345,547.03, 1,855,346.48 and 1,099,769.24 is: 1,516,448.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,547.03 : 1,855,346.48 = 1,099,769.24 : x
  2. Step 2: Convert to fraction form
    1,345,547.03/1,855,346.48 = 1,099,769.24/x
  3. Step 3: Cross multiply
    1,345,547.03x = 1,855,346.48 × 1,099,769.24
  4. Step 4: Simplify right side
    1,345,547.03x = 2,040,452,973,470.70
  5. Step 5: Solve for x
    x = 2,040,452,973,470.70/1,345,547.03
  6. Step 6: Final answer
    x = 1,516,448.65

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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.