Home / 467,077.20-644,686.78-304,140.40

Finding the Fourth Proportional to 467,077.20, 644,686.78 and 304,140.40

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Solution

The fourth proportional to 467,077.20, 644,686.78 and 304,140.40 is: 419,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,077.20 : 644,686.78 = 304,140.40 : x
  2. Step 2: Convert to fraction form
    467,077.20/644,686.78 = 304,140.40/x
  3. Step 3: Cross multiply
    467,077.20x = 644,686.78 × 304,140.40
  4. Step 4: Simplify right side
    467,077.20x = 196,075,295,143.91
  5. Step 5: Solve for x
    x = 196,075,295,143.91/467,077.20
  6. Step 6: Final answer
    x = 419,792.05

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1.5x scale

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.