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Finding the Fourth Proportional to 647,051.70, 970,577.55 and 395,109.30

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Solution

The fourth proportional to 647,051.70, 970,577.55 and 395,109.30 is: 592,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,051.70 : 970,577.55 = 395,109.30 : x
  2. Step 2: Convert to fraction form
    647,051.70/970,577.55 = 395,109.30/x
  3. Step 3: Cross multiply
    647,051.70x = 970,577.55 × 395,109.30
  4. Step 4: Simplify right side
    647,051.70x = 383,484,216,376.22
  5. Step 5: Solve for x
    x = 383,484,216,376.22/647,051.70
  6. Step 6: Final answer
    x = 592,663.95

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Similar ratio
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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.