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Finding the Fourth Proportional to 615,261.40, 923,021.70 and 260,092.60

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Solution

The fourth proportional to 615,261.40, 923,021.70 and 260,092.60 is: 390,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,261.40 : 923,021.70 = 260,092.60 : x
  2. Step 2: Convert to fraction form
    615,261.40/923,021.70 = 260,092.60/x
  3. Step 3: Cross multiply
    615,261.40x = 923,021.70 × 260,092.60
  4. Step 4: Simplify right side
    615,261.40x = 240,071,113,809.42
  5. Step 5: Solve for x
    x = 240,071,113,809.42/615,261.40
  6. Step 6: Final answer
    x = 390,193.69

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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.