Home / 1,948,145.28-2,686,699.56-1,223,060.64

Finding the Fourth Proportional to 1,948,145.28, 2,686,699.56 and 1,223,060.64

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Solution

The fourth proportional to 1,948,145.28, 2,686,699.56 and 1,223,060.64 is: 1,686,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,145.28 : 2,686,699.56 = 1,223,060.64 : x
  2. Step 2: Convert to fraction form
    1,948,145.28/2,686,699.56 = 1,223,060.64/x
  3. Step 3: Cross multiply
    1,948,145.28x = 2,686,699.56 × 1,223,060.64
  4. Step 4: Simplify right side
    1,948,145.28x = 3,285,996,483,341.32
  5. Step 5: Solve for x
    x = 3,285,996,483,341.32/1,948,145.28
  6. Step 6: Final answer
    x = 1,686,730.72

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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.