Home / 851,134.32-1,174,671.72-488,671.74

Finding the Fourth Proportional to 851,134.32, 1,174,671.72 and 488,671.74

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Solution

The fourth proportional to 851,134.32, 1,174,671.72 and 488,671.74 is: 674,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,134.32 : 1,174,671.72 = 488,671.74 : x
  2. Step 2: Convert to fraction form
    851,134.32/1,174,671.72 = 488,671.74/x
  3. Step 3: Cross multiply
    851,134.32x = 1,174,671.72 × 488,671.74
  4. Step 4: Simplify right side
    851,134.32x = 574,028,873,341.19
  5. Step 5: Solve for x
    x = 574,028,873,341.19/851,134.32
  6. Step 6: Final answer
    x = 674,428.07

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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.