Home / 851,135.32-1,174,673.10-488,672.74

Finding the Fourth Proportional to 851,135.32, 1,174,673.10 and 488,672.74

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Solution

The fourth proportional to 851,135.32, 1,174,673.10 and 488,672.74 is: 674,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,135.32 : 1,174,673.10 = 488,672.74 : x
  2. Step 2: Convert to fraction form
    851,135.32/1,174,673.10 = 488,672.74/x
  3. Step 3: Cross multiply
    851,135.32x = 1,174,673.10 × 488,672.74
  4. Step 4: Simplify right side
    851,135.32x = 574,030,722,381.29
  5. Step 5: Solve for x
    x = 574,030,722,381.29/851,135.32
  6. Step 6: Final answer
    x = 674,429.45

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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.