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Finding the Fourth Proportional to 610,315.20, 915,618.60 and 294,512.40

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Solution

The fourth proportional to 610,315.20, 915,618.60 and 294,512.40 is: 441,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,315.20 : 915,618.60 = 294,512.40 : x
  2. Step 2: Convert to fraction form
    610,315.20/915,618.60 = 294,512.40/x
  3. Step 3: Cross multiply
    610,315.20x = 915,618.60 × 294,512.40
  4. Step 4: Simplify right side
    610,315.20x = 269,661,031,370.64
  5. Step 5: Solve for x
    x = 269,661,031,370.64/610,315.20
  6. Step 6: Final answer
    x = 441,838.96

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1.5x scale

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.