Home / 1,115,071.20-1,538,930.16-662,364

Finding the Fourth Proportional to 1,115,071.20, 1,538,930.16 and 662,364

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Solution

The fourth proportional to 1,115,071.20, 1,538,930.16 and 662,364 is: 914,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,071.20 : 1,538,930.16 = 662,364 : x
  2. Step 2: Convert to fraction form
    1,115,071.20/1,538,930.16 = 662,364/x
  3. Step 3: Cross multiply
    1,115,071.20x = 1,538,930.16 × 662,364
  4. Step 4: Simplify right side
    1,115,071.20x = 1,019,331,936,498.24
  5. Step 5: Solve for x
    x = 1,019,331,936,498.24/1,115,071.20
  6. Step 6: Final answer
    x = 914,140.67

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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.