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Finding the Fourth Proportional to 568,079.17, 783,948.83 and 313,430.36

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Solution

The fourth proportional to 568,079.17, 783,948.83 and 313,430.36 is: 432,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,079.17 : 783,948.83 = 313,430.36 : x
  2. Step 2: Convert to fraction form
    568,079.17/783,948.83 = 313,430.36/x
  3. Step 3: Cross multiply
    568,079.17x = 783,948.83 × 313,430.36
  4. Step 4: Simplify right side
    568,079.17x = 245,713,364,694.34
  5. Step 5: Solve for x
    x = 245,713,364,694.34/568,079.17
  6. Step 6: Final answer
    x = 432,533.66

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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.