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Finding the Fourth Proportional to 940,808.80, 1,411,342.80 and 408,314.80

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Solution

The fourth proportional to 940,808.80, 1,411,342.80 and 408,314.80 is: 612,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,808.80 : 1,411,342.80 = 408,314.80 : x
  2. Step 2: Convert to fraction form
    940,808.80/1,411,342.80 = 408,314.80/x
  3. Step 3: Cross multiply
    940,808.80x = 1,411,342.80 × 408,314.80
  4. Step 4: Simplify right side
    940,808.80x = 576,272,153,113.44
  5. Step 5: Solve for x
    x = 576,272,153,113.44/940,808.80
  6. Step 6: Final answer
    x = 612,528.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.