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Finding the Fourth Proportional to 615,449.70, 923,271.75 and 260,465.58

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Solution

The fourth proportional to 615,449.70, 923,271.75 and 260,465.58 is: 390,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,449.70 : 923,271.75 = 260,465.58 : x
  2. Step 2: Convert to fraction form
    615,449.70/923,271.75 = 260,465.58/x
  3. Step 3: Cross multiply
    615,449.70x = 923,271.75 × 260,465.58
  4. Step 4: Simplify right side
    615,449.70x = 240,480,511,861.37
  5. Step 5: Solve for x
    x = 240,480,511,861.37/615,449.70
  6. Step 6: Final answer
    x = 390,739.51

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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.