Home / 1,977,658.40-2,967,265.20-779,376.80

Finding the Fourth Proportional to 1,977,658.40, 2,967,265.20 and 779,376.80

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Solution

The fourth proportional to 1,977,658.40, 2,967,265.20 and 779,376.80 is: 1,169,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,658.40 : 2,967,265.20 = 779,376.80 : x
  2. Step 2: Convert to fraction form
    1,977,658.40/2,967,265.20 = 779,376.80/x
  3. Step 3: Cross multiply
    1,977,658.40x = 2,967,265.20 × 779,376.80
  4. Step 4: Simplify right side
    1,977,658.40x = 2,312,617,656,327.36
  5. Step 5: Solve for x
    x = 2,312,617,656,327.36/1,977,658.40
  6. Step 6: Final answer
    x = 1,169,371.64

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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.