Home / 900,873.66-1,243,186.47-492,973.86

Finding the Fourth Proportional to 900,873.66, 1,243,186.47 and 492,973.86

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Solution

The fourth proportional to 900,873.66, 1,243,186.47 and 492,973.86 is: 680,293.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,873.66 : 1,243,186.47 = 492,973.86 : x
  2. Step 2: Convert to fraction form
    900,873.66/1,243,186.47 = 492,973.86/x
  3. Step 3: Cross multiply
    900,873.66x = 1,243,186.47 × 492,973.86
  4. Step 4: Simplify right side
    900,873.66x = 612,858,432,815.67
  5. Step 5: Solve for x
    x = 612,858,432,815.67/900,873.66
  6. Step 6: Final answer
    x = 680,293.43

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1.5x scale

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.