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Finding the Fourth Proportional to 899,895, 1,241,881.02 and 497,512.92

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Solution

The fourth proportional to 899,895, 1,241,881.02 and 497,512.92 is: 686,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,895 : 1,241,881.02 = 497,512.92 : x
  2. Step 2: Convert to fraction form
    899,895/1,241,881.02 = 497,512.92/x
  3. Step 3: Cross multiply
    899,895x = 1,241,881.02 × 497,512.92
  4. Step 4: Simplify right side
    899,895x = 617,851,852,552.78
  5. Step 5: Solve for x
    x = 617,851,852,552.78/899,895
  6. Step 6: Final answer
    x = 686,582.16

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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.