Home / 982,139.64-1,355,366.70-579,731.64

Finding the Fourth Proportional to 982,139.64, 1,355,366.70 and 579,731.64

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Solution

The fourth proportional to 982,139.64, 1,355,366.70 and 579,731.64 is: 800,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,139.64 : 1,355,366.70 = 579,731.64 : x
  2. Step 2: Convert to fraction form
    982,139.64/1,355,366.70 = 579,731.64/x
  3. Step 3: Cross multiply
    982,139.64x = 1,355,366.70 × 579,731.64
  4. Step 4: Simplify right side
    982,139.64x = 785,748,959,792.39
  5. Step 5: Solve for x
    x = 785,748,959,792.39/982,139.64
  6. Step 6: Final answer
    x = 800,037.93

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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.