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Finding the Fourth Proportional to 427,389.97, 592,495.28 and 404,637.88

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Solution

The fourth proportional to 427,389.97, 592,495.28 and 404,637.88 is: 560,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,389.97 : 592,495.28 = 404,637.88 : x
  2. Step 2: Convert to fraction form
    427,389.97/592,495.28 = 404,637.88/x
  3. Step 3: Cross multiply
    427,389.97x = 592,495.28 × 404,637.88
  4. Step 4: Simplify right side
    427,389.97x = 239,746,034,009.21
  5. Step 5: Solve for x
    x = 239,746,034,009.21/427,389.97
  6. Step 6: Final answer
    x = 560,953.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.