Home / 989,411.20-1,484,116.80-740,579.20

Finding the Fourth Proportional to 989,411.20, 1,484,116.80 and 740,579.20

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Solution

The fourth proportional to 989,411.20, 1,484,116.80 and 740,579.20 is: 1,110,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,411.20 : 1,484,116.80 = 740,579.20 : x
  2. Step 2: Convert to fraction form
    989,411.20/1,484,116.80 = 740,579.20/x
  3. Step 3: Cross multiply
    989,411.20x = 1,484,116.80 × 740,579.20
  4. Step 4: Simplify right side
    989,411.20x = 1,099,106,032,450.56
  5. Step 5: Solve for x
    x = 1,099,106,032,450.56/989,411.20
  6. Step 6: Final answer
    x = 1,110,868.80

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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.