Home / 1,440,864.30-1,988,338.95-829,111.53

Finding the Fourth Proportional to 1,440,864.30, 1,988,338.95 and 829,111.53

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Solution

The fourth proportional to 1,440,864.30, 1,988,338.95 and 829,111.53 is: 1,144,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,864.30 : 1,988,338.95 = 829,111.53 : x
  2. Step 2: Convert to fraction form
    1,440,864.30/1,988,338.95 = 829,111.53/x
  3. Step 3: Cross multiply
    1,440,864.30x = 1,988,338.95 × 829,111.53
  4. Step 4: Simplify right side
    1,440,864.30x = 1,648,554,748,993.09
  5. Step 5: Solve for x
    x = 1,648,554,748,993.09/1,440,864.30
  6. Step 6: Final answer
    x = 1,144,142.96

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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.