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Finding the Fourth Proportional to 615,213.60, 922,820.40 and 283,437.60

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Solution

The fourth proportional to 615,213.60, 922,820.40 and 283,437.60 is: 425,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,213.60 : 922,820.40 = 283,437.60 : x
  2. Step 2: Convert to fraction form
    615,213.60/922,820.40 = 283,437.60/x
  3. Step 3: Cross multiply
    615,213.60x = 922,820.40 × 283,437.60
  4. Step 4: Simplify right side
    615,213.60x = 261,561,999,407.04
  5. Step 5: Solve for x
    x = 261,561,999,407.04/615,213.60
  6. Step 6: Final answer
    x = 425,156.40

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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.