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Finding the Fourth Proportional to 570,429.82, 855,759 and 210,602.92

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Solution

The fourth proportional to 570,429.82, 855,759 and 210,602.92 is: 315,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,429.82 : 855,759 = 210,602.92 : x
  2. Step 2: Convert to fraction form
    570,429.82/855,759 = 210,602.92/x
  3. Step 3: Cross multiply
    570,429.82x = 855,759 × 210,602.92
  4. Step 4: Simplify right side
    570,429.82x = 180,225,344,216.28
  5. Step 5: Solve for x
    x = 180,225,344,216.28/570,429.82
  6. Step 6: Final answer
    x = 315,946.57

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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.