Home / 986,101.80-1,479,152.70-947,394.60

Finding the Fourth Proportional to 986,101.80, 1,479,152.70 and 947,394.60

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Solution

The fourth proportional to 986,101.80, 1,479,152.70 and 947,394.60 is: 1,421,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,101.80 : 1,479,152.70 = 947,394.60 : x
  2. Step 2: Convert to fraction form
    986,101.80/1,479,152.70 = 947,394.60/x
  3. Step 3: Cross multiply
    986,101.80x = 1,479,152.70 × 947,394.60
  4. Step 4: Simplify right side
    986,101.80x = 1,401,341,280,555.42
  5. Step 5: Solve for x
    x = 1,401,341,280,555.42/986,101.80
  6. Step 6: Final answer
    x = 1,421,091.90

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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.