Home / 1,280,934.92-1,921,371.75-416,368.76

Finding the Fourth Proportional to 1,280,934.92, 1,921,371.75 and 416,368.76

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Solution

The fourth proportional to 1,280,934.92, 1,921,371.75 and 416,368.76 is: 624,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,934.92 : 1,921,371.75 = 416,368.76 : x
  2. Step 2: Convert to fraction form
    1,280,934.92/1,921,371.75 = 416,368.76/x
  3. Step 3: Cross multiply
    1,280,934.92x = 1,921,371.75 × 416,368.76
  4. Step 4: Simplify right side
    1,280,934.92x = 799,999,163,439.67
  5. Step 5: Solve for x
    x = 799,999,163,439.67/1,280,934.92
  6. Step 6: Final answer
    x = 624,543.18

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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.