Home / 1,565,859.25-2,348,790.17-428,630.87

Finding the Fourth Proportional to 1,565,859.25, 2,348,790.17 and 428,630.87

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Solution

The fourth proportional to 1,565,859.25, 2,348,790.17 and 428,630.87 is: 642,946.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,859.25 : 2,348,790.17 = 428,630.87 : x
  2. Step 2: Convert to fraction form
    1,565,859.25/2,348,790.17 = 428,630.87/x
  3. Step 3: Cross multiply
    1,565,859.25x = 2,348,790.17 × 428,630.87
  4. Step 4: Simplify right side
    1,565,859.25x = 1,006,763,974,014.55
  5. Step 5: Solve for x
    x = 1,006,763,974,014.55/1,565,859.25
  6. Step 6: Final answer
    x = 642,946.66

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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.