Home / 466,600.32-643,740-305,547.20

Finding the Fourth Proportional to 466,600.32, 643,740 and 305,547.20

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Solution

The fourth proportional to 466,600.32, 643,740 and 305,547.20 is: 421,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,600.32 : 643,740 = 305,547.20 : x
  2. Step 2: Convert to fraction form
    466,600.32/643,740 = 305,547.20/x
  3. Step 3: Cross multiply
    466,600.32x = 643,740 × 305,547.20
  4. Step 4: Simplify right side
    466,600.32x = 196,692,954,528
  5. Step 5: Solve for x
    x = 196,692,954,528/466,600.32
  6. Step 6: Final answer
    x = 421,544.83

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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.