Home / 776,934.10-1,166,491.44-398,126.98

Finding the Fourth Proportional to 776,934.10, 1,166,491.44 and 398,126.98

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Solution

The fourth proportional to 776,934.10, 1,166,491.44 and 398,126.98 is: 597,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,934.10 : 1,166,491.44 = 398,126.98 : x
  2. Step 2: Convert to fraction form
    776,934.10/1,166,491.44 = 398,126.98/x
  3. Step 3: Cross multiply
    776,934.10x = 1,166,491.44 × 398,126.98
  4. Step 4: Simplify right side
    776,934.10x = 464,411,714,203.05
  5. Step 5: Solve for x
    x = 464,411,714,203.05/776,934.10
  6. Step 6: Final answer
    x = 597,749.17

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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.