Home / 1,108,264.71-1,528,676.76-764,115.15

Finding the Fourth Proportional to 1,108,264.71, 1,528,676.76 and 764,115.15

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Solution

The fourth proportional to 1,108,264.71, 1,528,676.76 and 764,115.15 is: 1,053,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,264.71 : 1,528,676.76 = 764,115.15 : x
  2. Step 2: Convert to fraction form
    1,108,264.71/1,528,676.76 = 764,115.15/x
  3. Step 3: Cross multiply
    1,108,264.71x = 1,528,676.76 × 764,115.15
  4. Step 4: Simplify right side
    1,108,264.71x = 1,168,085,071,768.91
  5. Step 5: Solve for x
    x = 1,168,085,071,768.91/1,108,264.71
  6. Step 6: Final answer
    x = 1,053,976.60

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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.