Home / 1,288,337.28-1,778,069.44-779,043.28

Finding the Fourth Proportional to 1,288,337.28, 1,778,069.44 and 779,043.28

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Solution

The fourth proportional to 1,288,337.28, 1,778,069.44 and 779,043.28 is: 1,075,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,337.28 : 1,778,069.44 = 779,043.28 : x
  2. Step 2: Convert to fraction form
    1,288,337.28/1,778,069.44 = 779,043.28/x
  3. Step 3: Cross multiply
    1,288,337.28x = 1,778,069.44 × 779,043.28
  4. Step 4: Simplify right side
    1,288,337.28x = 1,385,193,048,605.36
  5. Step 5: Solve for x
    x = 1,385,193,048,605.36/1,288,337.28
  6. Step 6: Final answer
    x = 1,075,178.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.