Home / 992,764.73-1,487,838.49-393,398.93

Finding the Fourth Proportional to 992,764.73, 1,487,838.49 and 393,398.93

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Solution

The fourth proportional to 992,764.73, 1,487,838.49 and 393,398.93 is: 589,579.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,764.73 : 1,487,838.49 = 393,398.93 : x
  2. Step 2: Convert to fraction form
    992,764.73/1,487,838.49 = 393,398.93/x
  3. Step 3: Cross multiply
    992,764.73x = 1,487,838.49 × 393,398.93
  4. Step 4: Simplify right side
    992,764.73x = 585,314,069,978.82
  5. Step 5: Solve for x
    x = 585,314,069,978.82/992,764.73
  6. Step 6: Final answer
    x = 589,579.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.