Home / 2,140,157.68-2,953,441.78-1,222,508.28

Finding the Fourth Proportional to 2,140,157.68, 2,953,441.78 and 1,222,508.28

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Solution

The fourth proportional to 2,140,157.68, 2,953,441.78 and 1,222,508.28 is: 1,687,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,157.68 : 2,953,441.78 = 1,222,508.28 : x
  2. Step 2: Convert to fraction form
    2,140,157.68/2,953,441.78 = 1,222,508.28/x
  3. Step 3: Cross multiply
    2,140,157.68x = 2,953,441.78 × 1,222,508.28
  4. Step 4: Simplify right side
    2,140,157.68x = 3,610,607,030,547.94
  5. Step 5: Solve for x
    x = 3,610,607,030,547.94/2,140,157.68
  6. Step 6: Final answer
    x = 1,687,075.24

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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.