Home / 631,865.40-946,415.70-382,111.80

Finding the Fourth Proportional to 631,865.40, 946,415.70 and 382,111.80

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Solution

The fourth proportional to 631,865.40, 946,415.70 and 382,111.80 is: 572,331.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,865.40 : 946,415.70 = 382,111.80 : x
  2. Step 2: Convert to fraction form
    631,865.40/946,415.70 = 382,111.80/x
  3. Step 3: Cross multiply
    631,865.40x = 946,415.70 × 382,111.80
  4. Step 4: Simplify right side
    631,865.40x = 361,636,606,675.26
  5. Step 5: Solve for x
    x = 361,636,606,675.26/631,865.40
  6. Step 6: Final answer
    x = 572,331.71

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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.