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Finding the Fourth Proportional to 651,878.29, 899,593.95 and 361,510.30

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Solution

The fourth proportional to 651,878.29, 899,593.95 and 361,510.30 is: 498,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,878.29 : 899,593.95 = 361,510.30 : x
  2. Step 2: Convert to fraction form
    651,878.29/899,593.95 = 361,510.30/x
  3. Step 3: Cross multiply
    651,878.29x = 899,593.95 × 361,510.30
  4. Step 4: Simplify right side
    651,878.29x = 325,212,478,742.69
  5. Step 5: Solve for x
    x = 325,212,478,742.69/651,878.29
  6. Step 6: Final answer
    x = 498,885.27

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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.