Home / 693,608.40-1,038,637.08-480,081.06

Finding the Fourth Proportional to 693,608.40, 1,038,637.08 and 480,081.06

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Solution

The fourth proportional to 693,608.40, 1,038,637.08 and 480,081.06 is: 718,892.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,608.40 : 1,038,637.08 = 480,081.06 : x
  2. Step 2: Convert to fraction form
    693,608.40/1,038,637.08 = 480,081.06/x
  3. Step 3: Cross multiply
    693,608.40x = 1,038,637.08 × 480,081.06
  4. Step 4: Simplify right side
    693,608.40x = 498,629,990,321.71
  5. Step 5: Solve for x
    x = 498,629,990,321.71/693,608.40
  6. Step 6: Final answer
    x = 718,892.66

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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.