Home / 763,729.48-1,145,741.73-290,378.04

Finding the Fourth Proportional to 763,729.48, 1,145,741.73 and 290,378.04

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Solution

The fourth proportional to 763,729.48, 1,145,741.73 and 290,378.04 is: 435,623.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,729.48 : 1,145,741.73 = 290,378.04 : x
  2. Step 2: Convert to fraction form
    763,729.48/1,145,741.73 = 290,378.04/x
  3. Step 3: Cross multiply
    763,729.48x = 1,145,741.73 × 290,378.04
  4. Step 4: Simplify right side
    763,729.48x = 332,698,237,903.61
  5. Step 5: Solve for x
    x = 332,698,237,903.61/763,729.48
  6. Step 6: Final answer
    x = 435,623.14

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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.