Home / 999,675.34-1,378,116.90-712,697.20

Finding the Fourth Proportional to 999,675.34, 1,378,116.90 and 712,697.20

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Solution

The fourth proportional to 999,675.34, 1,378,116.90 and 712,697.20 is: 982,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,675.34 : 1,378,116.90 = 712,697.20 : x
  2. Step 2: Convert to fraction form
    999,675.34/1,378,116.90 = 712,697.20/x
  3. Step 3: Cross multiply
    999,675.34x = 1,378,116.90 × 712,697.20
  4. Step 4: Simplify right side
    999,675.34x = 982,180,055,902.68
  5. Step 5: Solve for x
    x = 982,180,055,902.68/999,675.34
  6. Step 6: Final answer
    x = 982,499.03

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1.5x scale

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.