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Finding the Fourth Proportional to 615,175.20, 922,762.80 and 335,239.20

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Solution

The fourth proportional to 615,175.20, 922,762.80 and 335,239.20 is: 502,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,175.20 : 922,762.80 = 335,239.20 : x
  2. Step 2: Convert to fraction form
    615,175.20/922,762.80 = 335,239.20/x
  3. Step 3: Cross multiply
    615,175.20x = 922,762.80 × 335,239.20
  4. Step 4: Simplify right side
    615,175.20x = 309,346,262,861.76
  5. Step 5: Solve for x
    x = 309,346,262,861.76/615,175.20
  6. Step 6: Final answer
    x = 502,858.80

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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.