Home / 989,246.80-1,482,703.80-515,688.40

Finding the Fourth Proportional to 989,246.80, 1,482,703.80 and 515,688.40

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Solution

The fourth proportional to 989,246.80, 1,482,703.80 and 515,688.40 is: 772,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,246.80 : 1,482,703.80 = 515,688.40 : x
  2. Step 2: Convert to fraction form
    989,246.80/1,482,703.80 = 515,688.40/x
  3. Step 3: Cross multiply
    989,246.80x = 1,482,703.80 × 515,688.40
  4. Step 4: Simplify right side
    989,246.80x = 764,613,150,295.92
  5. Step 5: Solve for x
    x = 764,613,150,295.92/989,246.80
  6. Step 6: Final answer
    x = 772,924.56

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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.