Home / 987,530.70-1,481,296.05-668,666.10

Finding the Fourth Proportional to 987,530.70, 1,481,296.05 and 668,666.10

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Solution

The fourth proportional to 987,530.70, 1,481,296.05 and 668,666.10 is: 1,002,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,530.70 : 1,481,296.05 = 668,666.10 : x
  2. Step 2: Convert to fraction form
    987,530.70/1,481,296.05 = 668,666.10/x
  3. Step 3: Cross multiply
    987,530.70x = 1,481,296.05 × 668,666.10
  4. Step 4: Simplify right side
    987,530.70x = 990,492,452,698.91
  5. Step 5: Solve for x
    x = 990,492,452,698.91/987,530.70
  6. Step 6: Final answer
    x = 1,002,999.15

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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.