Home / 968,012.64-1,336,139.05-645,721.97

Finding the Fourth Proportional to 968,012.64, 1,336,139.05 and 645,721.97

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Solution

The fourth proportional to 968,012.64, 1,336,139.05 and 645,721.97 is: 891,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,012.64 : 1,336,139.05 = 645,721.97 : x
  2. Step 2: Convert to fraction form
    968,012.64/1,336,139.05 = 645,721.97/x
  3. Step 3: Cross multiply
    968,012.64x = 1,336,139.05 × 645,721.97
  4. Step 4: Simplify right side
    968,012.64x = 862,774,331,264.93
  5. Step 5: Solve for x
    x = 862,774,331,264.93/968,012.64
  6. Step 6: Final answer
    x = 891,284.16

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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.