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Finding the Fourth Proportional to 570,766.25, 787,655.45 and 329,047.67

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Solution

The fourth proportional to 570,766.25, 787,655.45 and 329,047.67 is: 454,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,766.25 : 787,655.45 = 329,047.67 : x
  2. Step 2: Convert to fraction form
    570,766.25/787,655.45 = 329,047.67/x
  3. Step 3: Cross multiply
    570,766.25x = 787,655.45 × 329,047.67
  4. Step 4: Simplify right side
    570,766.25x = 259,176,185,001.79
  5. Step 5: Solve for x
    x = 259,176,185,001.79/570,766.25
  6. Step 6: Final answer
    x = 454,084.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.