Home / 900,781.66-1,243,059.51-492,881.86

Finding the Fourth Proportional to 900,781.66, 1,243,059.51 and 492,881.86

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Solution

The fourth proportional to 900,781.66, 1,243,059.51 and 492,881.86 is: 680,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,781.66 : 1,243,059.51 = 492,881.86 : x
  2. Step 2: Convert to fraction form
    900,781.66/1,243,059.51 = 492,881.86/x
  3. Step 3: Cross multiply
    900,781.66x = 1,243,059.51 × 492,881.86
  4. Step 4: Simplify right side
    900,781.66x = 612,681,483,379.49
  5. Step 5: Solve for x
    x = 612,681,483,379.49/900,781.66
  6. Step 6: Final answer
    x = 680,166.47

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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.