Home / 990,365.88-1,366,005.42-608,607.48

Finding the Fourth Proportional to 990,365.88, 1,366,005.42 and 608,607.48

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Solution

The fourth proportional to 990,365.88, 1,366,005.42 and 608,607.48 is: 839,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,365.88 : 1,366,005.42 = 608,607.48 : x
  2. Step 2: Convert to fraction form
    990,365.88/1,366,005.42 = 608,607.48/x
  3. Step 3: Cross multiply
    990,365.88x = 1,366,005.42 × 608,607.48
  4. Step 4: Simplify right side
    990,365.88x = 831,361,116,332.54
  5. Step 5: Solve for x
    x = 831,361,116,332.54/990,365.88
  6. Step 6: Final answer
    x = 839,448.46

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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.