Home / 791,310-1,186,610.28-471,612.72

Finding the Fourth Proportional to 791,310, 1,186,610.28 and 471,612.72

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Solution

The fourth proportional to 791,310, 1,186,610.28 and 471,612.72 is: 707,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,310 : 1,186,610.28 = 471,612.72 : x
  2. Step 2: Convert to fraction form
    791,310/1,186,610.28 = 471,612.72/x
  3. Step 3: Cross multiply
    791,310x = 1,186,610.28 × 471,612.72
  4. Step 4: Simplify right side
    791,310x = 559,620,501,730.76
  5. Step 5: Solve for x
    x = 559,620,501,730.76/791,310
  6. Step 6: Final answer
    x = 707,207.67

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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.