Home / 1,288,467.42-1,777,798.71-779,158.86

Finding the Fourth Proportional to 1,288,467.42, 1,777,798.71 and 779,158.86

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Solution

The fourth proportional to 1,288,467.42, 1,777,798.71 and 779,158.86 is: 1,075,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,467.42 : 1,777,798.71 = 779,158.86 : x
  2. Step 2: Convert to fraction form
    1,288,467.42/1,777,798.71 = 779,158.86/x
  3. Step 3: Cross multiply
    1,288,467.42x = 1,777,798.71 × 779,158.86
  4. Step 4: Simplify right side
    1,288,467.42x = 1,385,187,616,193.07
  5. Step 5: Solve for x
    x = 1,385,187,616,193.07/1,288,467.42
  6. Step 6: Final answer
    x = 1,075,066.08

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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.