Home / 1,021,639.41-1,531,663.90-661,048.37

Finding the Fourth Proportional to 1,021,639.41, 1,531,663.90 and 661,048.37

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Solution

The fourth proportional to 1,021,639.41, 1,531,663.90 and 661,048.37 is: 991,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,639.41 : 1,531,663.90 = 661,048.37 : x
  2. Step 2: Convert to fraction form
    1,021,639.41/1,531,663.90 = 661,048.37/x
  3. Step 3: Cross multiply
    1,021,639.41x = 1,531,663.90 × 661,048.37
  4. Step 4: Simplify right side
    1,021,639.41x = 1,012,503,926,659.38
  5. Step 5: Solve for x
    x = 1,012,503,926,659.38/1,021,639.41
  6. Step 6: Final answer
    x = 991,058.01

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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.