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Finding the Fourth Proportional to 558,269.72, 770,238.42 and 316,533.32

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Solution

The fourth proportional to 558,269.72, 770,238.42 and 316,533.32 is: 436,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,269.72 : 770,238.42 = 316,533.32 : x
  2. Step 2: Convert to fraction form
    558,269.72/770,238.42 = 316,533.32/x
  3. Step 3: Cross multiply
    558,269.72x = 770,238.42 × 316,533.32
  4. Step 4: Simplify right side
    558,269.72x = 243,806,124,274.15
  5. Step 5: Solve for x
    x = 243,806,124,274.15/558,269.72
  6. Step 6: Final answer
    x = 436,717.44

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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.