Home / 771,295.30-1,064,356.41-449,014.66

Finding the Fourth Proportional to 771,295.30, 1,064,356.41 and 449,014.66

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Solution

The fourth proportional to 771,295.30, 1,064,356.41 and 449,014.66 is: 619,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,295.30 : 1,064,356.41 = 449,014.66 : x
  2. Step 2: Convert to fraction form
    771,295.30/1,064,356.41 = 449,014.66/x
  3. Step 3: Cross multiply
    771,295.30x = 1,064,356.41 × 449,014.66
  4. Step 4: Simplify right side
    771,295.30x = 477,911,631,554.97
  5. Step 5: Solve for x
    x = 477,911,631,554.97/771,295.30
  6. Step 6: Final answer
    x = 619,622.12

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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.