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Finding the Fourth Proportional to 575,707.60, 862,783.80 and 385,627.60

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Solution

The fourth proportional to 575,707.60, 862,783.80 and 385,627.60 is: 577,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,707.60 : 862,783.80 = 385,627.60 : x
  2. Step 2: Convert to fraction form
    575,707.60/862,783.80 = 385,627.60/x
  3. Step 3: Cross multiply
    575,707.60x = 862,783.80 × 385,627.60
  4. Step 4: Simplify right side
    575,707.60x = 332,713,246,112.88
  5. Step 5: Solve for x
    x = 332,713,246,112.88/575,707.60
  6. Step 6: Final answer
    x = 577,920.54

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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.