Home / 1,075,560.40-1,613,686.20-720,974.80

Finding the Fourth Proportional to 1,075,560.40, 1,613,686.20 and 720,974.80

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Solution

The fourth proportional to 1,075,560.40, 1,613,686.20 and 720,974.80 is: 1,081,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,560.40 : 1,613,686.20 = 720,974.80 : x
  2. Step 2: Convert to fraction form
    1,075,560.40/1,613,686.20 = 720,974.80/x
  3. Step 3: Cross multiply
    1,075,560.40x = 1,613,686.20 × 720,974.80
  4. Step 4: Simplify right side
    1,075,560.40x = 1,163,427,085,307.76
  5. Step 5: Solve for x
    x = 1,163,427,085,307.76/1,075,560.40
  6. Step 6: Final answer
    x = 1,081,693.86

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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.