Home / 763,020.83-1,144,771.88-478,909.01

Finding the Fourth Proportional to 763,020.83, 1,144,771.88 and 478,909.01

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Solution

The fourth proportional to 763,020.83, 1,144,771.88 and 478,909.01 is: 718,514.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,020.83 : 1,144,771.88 = 478,909.01 : x
  2. Step 2: Convert to fraction form
    763,020.83/1,144,771.88 = 478,909.01/x
  3. Step 3: Cross multiply
    763,020.83x = 1,144,771.88 × 478,909.01
  4. Step 4: Simplify right side
    763,020.83x = 548,241,559,608.23
  5. Step 5: Solve for x
    x = 548,241,559,608.23/763,020.83
  6. Step 6: Final answer
    x = 718,514.54

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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.