Home / 990,370.88-1,484,639.04-359,115.20

Finding the Fourth Proportional to 990,370.88, 1,484,639.04 and 359,115.20

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Solution

The fourth proportional to 990,370.88, 1,484,639.04 and 359,115.20 is: 538,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,370.88 : 1,484,639.04 = 359,115.20 : x
  2. Step 2: Convert to fraction form
    990,370.88/1,484,639.04 = 359,115.20/x
  3. Step 3: Cross multiply
    990,370.88x = 1,484,639.04 × 359,115.20
  4. Step 4: Simplify right side
    990,370.88x = 533,156,445,777.41
  5. Step 5: Solve for x
    x = 533,156,445,777.41/990,370.88
  6. Step 6: Final answer
    x = 538,340.19

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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.