Home / 876,937.80-1,315,406.70-698,478.60

Finding the Fourth Proportional to 876,937.80, 1,315,406.70 and 698,478.60

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Solution

The fourth proportional to 876,937.80, 1,315,406.70 and 698,478.60 is: 1,047,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,937.80 : 1,315,406.70 = 698,478.60 : x
  2. Step 2: Convert to fraction form
    876,937.80/1,315,406.70 = 698,478.60/x
  3. Step 3: Cross multiply
    876,937.80x = 1,315,406.70 × 698,478.60
  4. Step 4: Simplify right side
    876,937.80x = 918,783,430,246.62
  5. Step 5: Solve for x
    x = 918,783,430,246.62/876,937.80
  6. Step 6: Final answer
    x = 1,047,717.90

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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.