Home / 2,121,985.45-2,928,340.23-1,155,123.08

Finding the Fourth Proportional to 2,121,985.45, 2,928,340.23 and 1,155,123.08

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Solution

The fourth proportional to 2,121,985.45, 2,928,340.23 and 1,155,123.08 is: 1,594,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,985.45 : 2,928,340.23 = 1,155,123.08 : x
  2. Step 2: Convert to fraction form
    2,121,985.45/2,928,340.23 = 1,155,123.08/x
  3. Step 3: Cross multiply
    2,121,985.45x = 2,928,340.23 × 1,155,123.08
  4. Step 4: Simplify right side
    2,121,985.45x = 3,382,593,371,123.81
  5. Step 5: Solve for x
    x = 3,382,593,371,123.81/2,121,985.45
  6. Step 6: Final answer
    x = 1,594,070.02

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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.