Home / 876,120.80-1,314,764.40-402,562.40

Finding the Fourth Proportional to 876,120.80, 1,314,764.40 and 402,562.40

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Solution

The fourth proportional to 876,120.80, 1,314,764.40 and 402,562.40 is: 604,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,120.80 : 1,314,764.40 = 402,562.40 : x
  2. Step 2: Convert to fraction form
    876,120.80/1,314,764.40 = 402,562.40/x
  3. Step 3: Cross multiply
    876,120.80x = 1,314,764.40 × 402,562.40
  4. Step 4: Simplify right side
    876,120.80x = 529,274,712,298.56
  5. Step 5: Solve for x
    x = 529,274,712,298.56/876,120.80
  6. Step 6: Final answer
    x = 604,111.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.