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Finding the Fourth Proportional to 634,371, 875,351.52 and 347,815.68

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Solution

The fourth proportional to 634,371, 875,351.52 and 347,815.68 is: 479,941.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,371 : 875,351.52 = 347,815.68 : x
  2. Step 2: Convert to fraction form
    634,371/875,351.52 = 347,815.68/x
  3. Step 3: Cross multiply
    634,371x = 875,351.52 × 347,815.68
  4. Step 4: Simplify right side
    634,371x = 304,460,984,167.83
  5. Step 5: Solve for x
    x = 304,460,984,167.83/634,371
  6. Step 6: Final answer
    x = 479,941.52

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1.5x scale

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.