Home / 1,440,955.72-1,988,595.80-829,201.60

Finding the Fourth Proportional to 1,440,955.72, 1,988,595.80 and 829,201.60

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Solution

The fourth proportional to 1,440,955.72, 1,988,595.80 and 829,201.60 is: 1,144,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,955.72 : 1,988,595.80 = 829,201.60 : x
  2. Step 2: Convert to fraction form
    1,440,955.72/1,988,595.80 = 829,201.60/x
  3. Step 3: Cross multiply
    1,440,955.72x = 1,988,595.80 × 829,201.60
  4. Step 4: Simplify right side
    1,440,955.72x = 1,648,946,819,113.28
  5. Step 5: Solve for x
    x = 1,648,946,819,113.28/1,440,955.72
  6. Step 6: Final answer
    x = 1,144,342.46

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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.