Home / 615,556.23-924,355.53-380,393.61

Finding the Fourth Proportional to 615,556.23, 924,355.53 and 380,393.61

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Solution

The fourth proportional to 615,556.23, 924,355.53 and 380,393.61 is: 571,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,556.23 : 924,355.53 = 380,393.61 : x
  2. Step 2: Convert to fraction form
    615,556.23/924,355.53 = 380,393.61/x
  3. Step 3: Cross multiply
    615,556.23x = 924,355.53 × 380,393.61
  4. Step 4: Simplify right side
    615,556.23x = 351,618,936,980.16
  5. Step 5: Solve for x
    x = 351,618,936,980.16/615,556.23
  6. Step 6: Final answer
    x = 571,221.47

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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.