Home / 900,767.50-1,243,074.91-492,905.10

Finding the Fourth Proportional to 900,767.50, 1,243,074.91 and 492,905.10

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Solution

The fourth proportional to 900,767.50, 1,243,074.91 and 492,905.10 is: 680,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,767.50 : 1,243,074.91 = 492,905.10 : x
  2. Step 2: Convert to fraction form
    900,767.50/1,243,074.91 = 492,905.10/x
  3. Step 3: Cross multiply
    900,767.50x = 1,243,074.91 × 492,905.10
  4. Step 4: Simplify right side
    900,767.50x = 612,717,962,821.04
  5. Step 5: Solve for x
    x = 612,717,962,821.04/900,767.50
  6. Step 6: Final answer
    x = 680,217.66

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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.