Home / 466,772.16-643,886.28-305,886.72

Finding the Fourth Proportional to 466,772.16, 643,886.28 and 305,886.72

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Solution

The fourth proportional to 466,772.16, 643,886.28 and 305,886.72 is: 421,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,772.16 : 643,886.28 = 305,886.72 : x
  2. Step 2: Convert to fraction form
    466,772.16/643,886.28 = 305,886.72/x
  3. Step 3: Cross multiply
    466,772.16x = 643,886.28 × 305,886.72
  4. Step 4: Simplify right side
    466,772.16x = 196,956,262,242.20
  5. Step 5: Solve for x
    x = 196,956,262,242.20/466,772.16
  6. Step 6: Final answer
    x = 421,953.75

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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.