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Finding the Fourth Proportional to 615,036.80, 922,679.72 and 260,050.24

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Solution

The fourth proportional to 615,036.80, 922,679.72 and 260,050.24 is: 390,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,036.80 : 922,679.72 = 260,050.24 : x
  2. Step 2: Convert to fraction form
    615,036.80/922,679.72 = 260,050.24/x
  3. Step 3: Cross multiply
    615,036.80x = 922,679.72 × 260,050.24
  4. Step 4: Simplify right side
    615,036.80x = 239,943,082,629.13
  5. Step 5: Solve for x
    x = 239,943,082,629.13/615,036.80
  6. Step 6: Final answer
    x = 390,128.01

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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.