Home / 1,440,865.80-1,988,341.02-829,113.03

Finding the Fourth Proportional to 1,440,865.80, 1,988,341.02 and 829,113.03

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Solution

The fourth proportional to 1,440,865.80, 1,988,341.02 and 829,113.03 is: 1,144,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,865.80 : 1,988,341.02 = 829,113.03 : x
  2. Step 2: Convert to fraction form
    1,440,865.80/1,988,341.02 = 829,113.03/x
  3. Step 3: Cross multiply
    1,440,865.80x = 1,988,341.02 × 829,113.03
  4. Step 4: Simplify right side
    1,440,865.80x = 1,648,559,447,765.49
  5. Step 5: Solve for x
    x = 1,648,559,447,765.49/1,440,865.80
  6. Step 6: Final answer
    x = 1,144,145.03

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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.