Home / 1,075,821.60-1,613,732.40-721,927.20

Finding the Fourth Proportional to 1,075,821.60, 1,613,732.40 and 721,927.20

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Solution

The fourth proportional to 1,075,821.60, 1,613,732.40 and 721,927.20 is: 1,082,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,821.60 : 1,613,732.40 = 721,927.20 : x
  2. Step 2: Convert to fraction form
    1,075,821.60/1,613,732.40 = 721,927.20/x
  3. Step 3: Cross multiply
    1,075,821.60x = 1,613,732.40 × 721,927.20
  4. Step 4: Simplify right side
    1,075,821.60x = 1,164,997,313,081.28
  5. Step 5: Solve for x
    x = 1,164,997,313,081.28/1,075,821.60
  6. Step 6: Final answer
    x = 1,082,890.80

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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.