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Finding the Fourth Proportional to 615,273.40, 923,039.70 and 260,104.60

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Solution

The fourth proportional to 615,273.40, 923,039.70 and 260,104.60 is: 390,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,273.40 : 923,039.70 = 260,104.60 : x
  2. Step 2: Convert to fraction form
    615,273.40/923,039.70 = 260,104.60/x
  3. Step 3: Cross multiply
    615,273.40x = 923,039.70 × 260,104.60
  4. Step 4: Simplify right side
    615,273.40x = 240,086,871,952.62
  5. Step 5: Solve for x
    x = 240,086,871,952.62/615,273.40
  6. Step 6: Final answer
    x = 390,211.69

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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.