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Finding the Fourth Proportional to 634,484, 875,665.68 and 366,212

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Solution

The fourth proportional to 634,484, 875,665.68 and 366,212 is: 505,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,484 : 875,665.68 = 366,212 : x
  2. Step 2: Convert to fraction form
    634,484/875,665.68 = 366,212/x
  3. Step 3: Cross multiply
    634,484x = 875,665.68 × 366,212
  4. Step 4: Simplify right side
    634,484x = 320,679,280,004.16
  5. Step 5: Solve for x
    x = 320,679,280,004.16/634,484
  6. Step 6: Final answer
    x = 505,417.44

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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.