Home / 1,512,377.90-2,087,228.58-1,129,740.38

Finding the Fourth Proportional to 1,512,377.90, 2,087,228.58 and 1,129,740.38

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Solution

The fourth proportional to 1,512,377.90, 2,087,228.58 and 1,129,740.38 is: 1,559,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,377.90 : 2,087,228.58 = 1,129,740.38 : x
  2. Step 2: Convert to fraction form
    1,512,377.90/2,087,228.58 = 1,129,740.38/x
  3. Step 3: Cross multiply
    1,512,377.90x = 2,087,228.58 × 1,129,740.38
  4. Step 4: Simplify right side
    1,512,377.90x = 2,358,026,409,116.06
  5. Step 5: Solve for x
    x = 2,358,026,409,116.06/1,512,377.90
  6. Step 6: Final answer
    x = 1,559,151.59

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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.