Home / 861,075.83-1,289,768.47-700,389.05

Finding the Fourth Proportional to 861,075.83, 1,289,768.47 and 700,389.05

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Solution

The fourth proportional to 861,075.83, 1,289,768.47 and 700,389.05 is: 1,049,082.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,075.83 : 1,289,768.47 = 700,389.05 : x
  2. Step 2: Convert to fraction form
    861,075.83/1,289,768.47 = 700,389.05/x
  3. Step 3: Cross multiply
    861,075.83x = 1,289,768.47 × 700,389.05
  4. Step 4: Simplify right side
    861,075.83x = 903,339,705,223.44
  5. Step 5: Solve for x
    x = 903,339,705,223.44/861,075.83
  6. Step 6: Final answer
    x = 1,049,082.64

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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.