Home / 827,264.45-1,240,897.65-258,648.56

Finding the Fourth Proportional to 827,264.45, 1,240,897.65 and 258,648.56

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Solution

The fourth proportional to 827,264.45, 1,240,897.65 and 258,648.56 is: 387,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,264.45 : 1,240,897.65 = 258,648.56 : x
  2. Step 2: Convert to fraction form
    827,264.45/1,240,897.65 = 258,648.56/x
  3. Step 3: Cross multiply
    827,264.45x = 1,240,897.65 × 258,648.56
  4. Step 4: Simplify right side
    827,264.45x = 320,956,384,075.40
  5. Step 5: Solve for x
    x = 320,956,384,075.40/827,264.45
  6. Step 6: Final answer
    x = 387,973.14

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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.