Home / 900,778.16-1,243,054.68-492,878.36

Finding the Fourth Proportional to 900,778.16, 1,243,054.68 and 492,878.36

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Solution

The fourth proportional to 900,778.16, 1,243,054.68 and 492,878.36 is: 680,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,778.16 : 1,243,054.68 = 492,878.36 : x
  2. Step 2: Convert to fraction form
    900,778.16/1,243,054.68 = 492,878.36/x
  3. Step 3: Cross multiply
    900,778.16x = 1,243,054.68 × 492,878.36
  4. Step 4: Simplify right side
    900,778.16x = 612,674,752,068.73
  5. Step 5: Solve for x
    x = 612,674,752,068.73/900,778.16
  6. Step 6: Final answer
    x = 680,161.64

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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.