Home / 1,287,031.14-1,930,934.16-1,160,075.70

Finding the Fourth Proportional to 1,287,031.14, 1,930,934.16 and 1,160,075.70

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Solution

The fourth proportional to 1,287,031.14, 1,930,934.16 and 1,160,075.70 is: 1,740,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,031.14 : 1,930,934.16 = 1,160,075.70 : x
  2. Step 2: Convert to fraction form
    1,287,031.14/1,930,934.16 = 1,160,075.70/x
  3. Step 3: Cross multiply
    1,287,031.14x = 1,930,934.16 × 1,160,075.70
  4. Step 4: Simplify right side
    1,287,031.14x = 2,240,029,797,315.91
  5. Step 5: Solve for x
    x = 2,240,029,797,315.91/1,287,031.14
  6. Step 6: Final answer
    x = 1,740,462.78

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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.