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Finding the Fourth Proportional to 404,393.20, 607,027.20 and 254,802.40

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Solution

The fourth proportional to 404,393.20, 607,027.20 and 254,802.40 is: 382,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,393.20 : 607,027.20 = 254,802.40 : x
  2. Step 2: Convert to fraction form
    404,393.20/607,027.20 = 254,802.40/x
  3. Step 3: Cross multiply
    404,393.20x = 607,027.20 × 254,802.40
  4. Step 4: Simplify right side
    404,393.20x = 154,671,987,425.28
  5. Step 5: Solve for x
    x = 154,671,987,425.28/404,393.20
  6. Step 6: Final answer
    x = 382,479.20

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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.