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Finding the Fourth Proportional to 404,407.20, 607,048.20 and 254,816.40

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Solution

The fourth proportional to 404,407.20, 607,048.20 and 254,816.40 is: 382,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,407.20 : 607,048.20 = 254,816.40 : x
  2. Step 2: Convert to fraction form
    404,407.20/607,048.20 = 254,816.40/x
  3. Step 3: Cross multiply
    404,407.20x = 607,048.20 × 254,816.40
  4. Step 4: Simplify right side
    404,407.20x = 154,685,836,950.48
  5. Step 5: Solve for x
    x = 154,685,836,950.48/404,407.20
  6. Step 6: Final answer
    x = 382,500.21

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1.5x scale

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.