Home / 839,869.80-1,158,970.38-477,243.33

Finding the Fourth Proportional to 839,869.80, 1,158,970.38 and 477,243.33

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Solution

The fourth proportional to 839,869.80, 1,158,970.38 and 477,243.33 is: 658,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,869.80 : 1,158,970.38 = 477,243.33 : x
  2. Step 2: Convert to fraction form
    839,869.80/1,158,970.38 = 477,243.33/x
  3. Step 3: Cross multiply
    839,869.80x = 1,158,970.38 × 477,243.33
  4. Step 4: Simplify right side
    839,869.80x = 553,110,883,522.57
  5. Step 5: Solve for x
    x = 553,110,883,522.57/839,869.80
  6. Step 6: Final answer
    x = 658,567.42

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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.