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Finding the Fourth Proportional to 664,374.72, 916,838.28 and 362,568.72

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Solution

The fourth proportional to 664,374.72, 916,838.28 and 362,568.72 is: 500,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,374.72 : 916,838.28 = 362,568.72 : x
  2. Step 2: Convert to fraction form
    664,374.72/916,838.28 = 362,568.72/x
  3. Step 3: Cross multiply
    664,374.72x = 916,838.28 × 362,568.72
  4. Step 4: Simplify right side
    664,374.72x = 332,416,881,626.60
  5. Step 5: Solve for x
    x = 332,416,881,626.60/664,374.72
  6. Step 6: Final answer
    x = 500,345.47

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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.