Home / 989,949.39-1,366,146.54-537,240.39

Finding the Fourth Proportional to 989,949.39, 1,366,146.54 and 537,240.39

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Solution

The fourth proportional to 989,949.39, 1,366,146.54 and 537,240.39 is: 741,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,949.39 : 1,366,146.54 = 537,240.39 : x
  2. Step 2: Convert to fraction form
    989,949.39/1,366,146.54 = 537,240.39/x
  3. Step 3: Cross multiply
    989,949.39x = 1,366,146.54 × 537,240.39
  4. Step 4: Simplify right side
    989,949.39x = 733,949,099,946.75
  5. Step 5: Solve for x
    x = 733,949,099,946.75/989,949.39
  6. Step 6: Final answer
    x = 741,400.63

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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.