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Finding the Fourth Proportional to 989,797.20, 1,484,695.80 and 737,854.80

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Solution

The fourth proportional to 989,797.20, 1,484,695.80 and 737,854.80 is: 1,106,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,797.20 : 1,484,695.80 = 737,854.80 : x
  2. Step 2: Convert to fraction form
    989,797.20/1,484,695.80 = 737,854.80/x
  3. Step 3: Cross multiply
    989,797.20x = 1,484,695.80 × 737,854.80
  4. Step 4: Simplify right side
    989,797.20x = 1,095,489,922,569.84
  5. Step 5: Solve for x
    x = 1,095,489,922,569.84/989,797.20
  6. Step 6: Final answer
    x = 1,106,782.20

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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.