Home / 990,609.85-1,484,877.69-414,563.18

Finding the Fourth Proportional to 990,609.85, 1,484,877.69 and 414,563.18

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Solution

The fourth proportional to 990,609.85, 1,484,877.69 and 414,563.18 is: 621,410.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,609.85 : 1,484,877.69 = 414,563.18 : x
  2. Step 2: Convert to fraction form
    990,609.85/1,484,877.69 = 414,563.18/x
  3. Step 3: Cross multiply
    990,609.85x = 1,484,877.69 × 414,563.18
  4. Step 4: Simplify right side
    990,609.85x = 615,575,618,005.50
  5. Step 5: Solve for x
    x = 615,575,618,005.50/990,609.85
  6. Step 6: Final answer
    x = 621,410.76

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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.