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Finding the Fourth Proportional to 492,117.93, 736,921.80 and 392,423.54

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Solution

The fourth proportional to 492,117.93, 736,921.80 and 392,423.54 is: 587,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,117.93 : 736,921.80 = 392,423.54 : x
  2. Step 2: Convert to fraction form
    492,117.93/736,921.80 = 392,423.54/x
  3. Step 3: Cross multiply
    492,117.93x = 736,921.80 × 392,423.54
  4. Step 4: Simplify right side
    492,117.93x = 289,185,457,774.56
  5. Step 5: Solve for x
    x = 289,185,457,774.56/492,117.93
  6. Step 6: Final answer
    x = 587,634.47

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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.