Home / 778,726.58-1,074,872.50-456,506.42

Finding the Fourth Proportional to 778,726.58, 1,074,872.50 and 456,506.42

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Solution

The fourth proportional to 778,726.58, 1,074,872.50 and 456,506.42 is: 630,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,726.58 : 1,074,872.50 = 456,506.42 : x
  2. Step 2: Convert to fraction form
    778,726.58/1,074,872.50 = 456,506.42/x
  3. Step 3: Cross multiply
    778,726.58x = 1,074,872.50 × 456,506.42
  4. Step 4: Simplify right side
    778,726.58x = 490,686,190,415.82
  5. Step 5: Solve for x
    x = 490,686,190,415.82/778,726.58
  6. Step 6: Final answer
    x = 630,113.58

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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.