Home / 763,598.40-1,145,544.91-290,246.75

Finding the Fourth Proportional to 763,598.40, 1,145,544.91 and 290,246.75

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Solution

The fourth proportional to 763,598.40, 1,145,544.91 and 290,246.75 is: 435,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,598.40 : 1,145,544.91 = 290,246.75 : x
  2. Step 2: Convert to fraction form
    763,598.40/1,145,544.91 = 290,246.75/x
  3. Step 3: Cross multiply
    763,598.40x = 1,145,544.91 × 290,246.75
  4. Step 4: Simplify right side
    763,598.40x = 332,490,680,653.20
  5. Step 5: Solve for x
    x = 332,490,680,653.20/763,598.40
  6. Step 6: Final answer
    x = 435,426.11

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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.