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Finding the Fourth Proportional to 559,622.40, 772,256.40 and 304,968.12

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Solution

The fourth proportional to 559,622.40, 772,256.40 and 304,968.12 is: 420,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,622.40 : 772,256.40 = 304,968.12 : x
  2. Step 2: Convert to fraction form
    559,622.40/772,256.40 = 304,968.12/x
  3. Step 3: Cross multiply
    559,622.40x = 772,256.40 × 304,968.12
  4. Step 4: Simplify right side
    559,622.40x = 235,513,582,465.97
  5. Step 5: Solve for x
    x = 235,513,582,465.97/559,622.40
  6. Step 6: Final answer
    x = 420,843.74

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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.