Home / 851,558.96-1,275,892.47-513,890.08

Finding the Fourth Proportional to 851,558.96, 1,275,892.47 and 513,890.08

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Solution

The fourth proportional to 851,558.96, 1,275,892.47 and 513,890.08 is: 769,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,558.96 : 1,275,892.47 = 513,890.08 : x
  2. Step 2: Convert to fraction form
    851,558.96/1,275,892.47 = 513,890.08/x
  3. Step 3: Cross multiply
    851,558.96x = 1,275,892.47 × 513,890.08
  4. Step 4: Simplify right side
    851,558.96x = 655,668,483,479.70
  5. Step 5: Solve for x
    x = 655,668,483,479.70/851,558.96
  6. Step 6: Final answer
    x = 769,962.52

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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.