Home / 989,780.70-1,484,671.05-737,838.30

Finding the Fourth Proportional to 989,780.70, 1,484,671.05 and 737,838.30

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Solution

The fourth proportional to 989,780.70, 1,484,671.05 and 737,838.30 is: 1,106,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,780.70 : 1,484,671.05 = 737,838.30 : x
  2. Step 2: Convert to fraction form
    989,780.70/1,484,671.05 = 737,838.30/x
  3. Step 3: Cross multiply
    989,780.70x = 1,484,671.05 × 737,838.30
  4. Step 4: Simplify right side
    989,780.70x = 1,095,447,163,591.22
  5. Step 5: Solve for x
    x = 1,095,447,163,591.22/989,780.70
  6. Step 6: Final answer
    x = 1,106,757.45

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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.