Home / 1,238,000.64-1,707,812.04-808,532.16

Finding the Fourth Proportional to 1,238,000.64, 1,707,812.04 and 808,532.16

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Solution

The fourth proportional to 1,238,000.64, 1,707,812.04 and 808,532.16 is: 1,115,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,000.64 : 1,707,812.04 = 808,532.16 : x
  2. Step 2: Convert to fraction form
    1,238,000.64/1,707,812.04 = 808,532.16/x
  3. Step 3: Cross multiply
    1,238,000.64x = 1,707,812.04 × 808,532.16
  4. Step 4: Simplify right side
    1,238,000.64x = 1,380,820,957,575.21
  5. Step 5: Solve for x
    x = 1,380,820,957,575.21/1,238,000.64
  6. Step 6: Final answer
    x = 1,115,363.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.