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Finding the Fourth Proportional to 647,817.24, 893,949.30 and 375,864.06

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Solution

The fourth proportional to 647,817.24, 893,949.30 and 375,864.06 is: 518,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,817.24 : 893,949.30 = 375,864.06 : x
  2. Step 2: Convert to fraction form
    647,817.24/893,949.30 = 375,864.06/x
  3. Step 3: Cross multiply
    647,817.24x = 893,949.30 × 375,864.06
  4. Step 4: Simplify right side
    647,817.24x = 336,003,413,332.16
  5. Step 5: Solve for x
    x = 336,003,413,332.16/647,817.24
  6. Step 6: Final answer
    x = 518,670.07

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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.