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Finding the Fourth Proportional to 615,410.73, 922,820.70 and 290,928.68

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Solution

The fourth proportional to 615,410.73, 922,820.70 and 290,928.68 is: 436,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,410.73 : 922,820.70 = 290,928.68 : x
  2. Step 2: Convert to fraction form
    615,410.73/922,820.70 = 290,928.68/x
  3. Step 3: Cross multiply
    615,410.73x = 922,820.70 × 290,928.68
  4. Step 4: Simplify right side
    615,410.73x = 268,475,011,525.71
  5. Step 5: Solve for x
    x = 268,475,011,525.71/615,410.73
  6. Step 6: Final answer
    x = 436,253.38

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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.