Home / 900,854.87-1,243,179.67-492,956.76

Finding the Fourth Proportional to 900,854.87, 1,243,179.67 and 492,956.76

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Solution

The fourth proportional to 900,854.87, 1,243,179.67 and 492,956.76 is: 680,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,854.87 : 1,243,179.67 = 492,956.76 : x
  2. Step 2: Convert to fraction form
    900,854.87/1,243,179.67 = 492,956.76/x
  3. Step 3: Cross multiply
    900,854.87x = 1,243,179.67 × 492,956.76
  4. Step 4: Simplify right side
    900,854.87x = 612,833,828,127.09
  5. Step 5: Solve for x
    x = 612,833,828,127.09/900,854.87
  6. Step 6: Final answer
    x = 680,280.31

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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.