Home / 977,396.63-1,348,007.55-687,966.32

Finding the Fourth Proportional to 977,396.63, 1,348,007.55 and 687,966.32

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Solution

The fourth proportional to 977,396.63, 1,348,007.55 and 687,966.32 is: 948,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,396.63 : 1,348,007.55 = 687,966.32 : x
  2. Step 2: Convert to fraction form
    977,396.63/1,348,007.55 = 687,966.32/x
  3. Step 3: Cross multiply
    977,396.63x = 1,348,007.55 × 687,966.32
  4. Step 4: Simplify right side
    977,396.63x = 927,383,793,505.72
  5. Step 5: Solve for x
    x = 927,383,793,505.72/977,396.63
  6. Step 6: Final answer
    x = 948,830.56

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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.