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Finding the Fourth Proportional to 774,752.70, 1,162,129.05 and 761,466.68

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Solution

The fourth proportional to 774,752.70, 1,162,129.05 and 761,466.68 is: 1,142,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,752.70 : 1,162,129.05 = 761,466.68 : x
  2. Step 2: Convert to fraction form
    774,752.70/1,162,129.05 = 761,466.68/x
  3. Step 3: Cross multiply
    774,752.70x = 1,162,129.05 × 761,466.68
  4. Step 4: Simplify right side
    774,752.70x = 884,922,543,624.41
  5. Step 5: Solve for x
    x = 884,922,543,624.41/774,752.70
  6. Step 6: Final answer
    x = 1,142,200.01

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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.