Home / 876,620.40-1,316,485.80-677,425.20

Finding the Fourth Proportional to 876,620.40, 1,316,485.80 and 677,425.20

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Solution

The fourth proportional to 876,620.40, 1,316,485.80 and 677,425.20 is: 1,017,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,620.40 : 1,316,485.80 = 677,425.20 : x
  2. Step 2: Convert to fraction form
    876,620.40/1,316,485.80 = 677,425.20/x
  3. Step 3: Cross multiply
    876,620.40x = 1,316,485.80 × 677,425.20
  4. Step 4: Simplify right side
    876,620.40x = 891,820,656,362.16
  5. Step 5: Solve for x
    x = 891,820,656,362.16/876,620.40
  6. Step 6: Final answer
    x = 1,017,339.61

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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.