Home / 1,865,700-2,798,438.76-1,097,629.20

Finding the Fourth Proportional to 1,865,700, 2,798,438.76 and 1,097,629.20

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Solution

The fourth proportional to 1,865,700, 2,798,438.76 and 1,097,629.20 is: 1,646,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,700 : 2,798,438.76 = 1,097,629.20 : x
  2. Step 2: Convert to fraction form
    1,865,700/2,798,438.76 = 1,097,629.20/x
  3. Step 3: Cross multiply
    1,865,700x = 2,798,438.76 × 1,097,629.20
  4. Step 4: Simplify right side
    1,865,700x = 3,071,648,097,387.79
  5. Step 5: Solve for x
    x = 3,071,648,097,387.79/1,865,700
  6. Step 6: Final answer
    x = 1,646,378.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.