Home / 1,108,915.14-1,663,555.20-340,393.55

Finding the Fourth Proportional to 1,108,915.14, 1,663,555.20 and 340,393.55

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Solution

The fourth proportional to 1,108,915.14, 1,663,555.20 and 340,393.55 is: 510,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,915.14 : 1,663,555.20 = 340,393.55 : x
  2. Step 2: Convert to fraction form
    1,108,915.14/1,663,555.20 = 340,393.55/x
  3. Step 3: Cross multiply
    1,108,915.14x = 1,663,555.20 × 340,393.55
  4. Step 4: Simplify right side
    1,108,915.14x = 566,263,458,446.99
  5. Step 5: Solve for x
    x = 566,263,458,446.99/1,108,915.14
  6. Step 6: Final answer
    x = 510,646.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.