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Finding the Fourth Proportional to 568,017.64, 783,867 and 313,368.76

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Solution

The fourth proportional to 568,017.64, 783,867 and 313,368.76 is: 432,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,017.64 : 783,867 = 313,368.76 : x
  2. Step 2: Convert to fraction form
    568,017.64/783,867 = 313,368.76/x
  3. Step 3: Cross multiply
    568,017.64x = 783,867 × 313,368.76
  4. Step 4: Simplify right side
    568,017.64x = 245,639,429,794.92
  5. Step 5: Solve for x
    x = 245,639,429,794.92/568,017.64
  6. Step 6: Final answer
    x = 432,450.35

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1.5x scale

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.