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Finding the Fourth Proportional to 607,792.20, 910,376.10 and 395,215.80

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Solution

The fourth proportional to 607,792.20, 910,376.10 and 395,215.80 is: 591,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,792.20 : 910,376.10 = 395,215.80 : x
  2. Step 2: Convert to fraction form
    607,792.20/910,376.10 = 395,215.80/x
  3. Step 3: Cross multiply
    607,792.20x = 910,376.10 × 395,215.80
  4. Step 4: Simplify right side
    607,792.20x = 359,795,018,662.38
  5. Step 5: Solve for x
    x = 359,795,018,662.38/607,792.20
  6. Step 6: Final answer
    x = 591,970.44

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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.