Home / 1,097,666.90-1,646,500.35-720,968.30

Finding the Fourth Proportional to 1,097,666.90, 1,646,500.35 and 720,968.30

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Solution

The fourth proportional to 1,097,666.90, 1,646,500.35 and 720,968.30 is: 1,081,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,666.90 : 1,646,500.35 = 720,968.30 : x
  2. Step 2: Convert to fraction form
    1,097,666.90/1,646,500.35 = 720,968.30/x
  3. Step 3: Cross multiply
    1,097,666.90x = 1,646,500.35 × 720,968.30
  4. Step 4: Simplify right side
    1,097,666.90x = 1,187,074,558,288.91
  5. Step 5: Solve for x
    x = 1,187,074,558,288.91/1,097,666.90
  6. Step 6: Final answer
    x = 1,081,452.45

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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.