Home / 990,532.80-1,485,799.20-517,363.20

Finding the Fourth Proportional to 990,532.80, 1,485,799.20 and 517,363.20

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Solution

The fourth proportional to 990,532.80, 1,485,799.20 and 517,363.20 is: 776,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,532.80 : 1,485,799.20 = 517,363.20 : x
  2. Step 2: Convert to fraction form
    990,532.80/1,485,799.20 = 517,363.20/x
  3. Step 3: Cross multiply
    990,532.80x = 1,485,799.20 × 517,363.20
  4. Step 4: Simplify right side
    990,532.80x = 768,697,828,669.44
  5. Step 5: Solve for x
    x = 768,697,828,669.44/990,532.80
  6. Step 6: Final answer
    x = 776,044.80

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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.