Home / 1,239,075.40-1,858,613.10-959,139.40

Finding the Fourth Proportional to 1,239,075.40, 1,858,613.10 and 959,139.40

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Solution

The fourth proportional to 1,239,075.40, 1,858,613.10 and 959,139.40 is: 1,438,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,075.40 : 1,858,613.10 = 959,139.40 : x
  2. Step 2: Convert to fraction form
    1,239,075.40/1,858,613.10 = 959,139.40/x
  3. Step 3: Cross multiply
    1,239,075.40x = 1,858,613.10 × 959,139.40
  4. Step 4: Simplify right side
    1,239,075.40x = 1,782,669,053,566.14
  5. Step 5: Solve for x
    x = 1,782,669,053,566.14/1,239,075.40
  6. Step 6: Final answer
    x = 1,438,709.10

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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.