Home / 1,492,885.80-2,239,328.70-861,474.60

Finding the Fourth Proportional to 1,492,885.80, 2,239,328.70 and 861,474.60

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Solution

The fourth proportional to 1,492,885.80, 2,239,328.70 and 861,474.60 is: 1,292,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,885.80 : 2,239,328.70 = 861,474.60 : x
  2. Step 2: Convert to fraction form
    1,492,885.80/2,239,328.70 = 861,474.60/x
  3. Step 3: Cross multiply
    1,492,885.80x = 2,239,328.70 × 861,474.60
  4. Step 4: Simplify right side
    1,492,885.80x = 1,929,124,796,101.02
  5. Step 5: Solve for x
    x = 1,929,124,796,101.02/1,492,885.80
  6. Step 6: Final answer
    x = 1,292,211.90

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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.