Home / 1,021,605.30-1,531,314.45-347,061.60

Finding the Fourth Proportional to 1,021,605.30, 1,531,314.45 and 347,061.60

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Solution

The fourth proportional to 1,021,605.30, 1,531,314.45 and 347,061.60 is: 520,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,605.30 : 1,531,314.45 = 347,061.60 : x
  2. Step 2: Convert to fraction form
    1,021,605.30/1,531,314.45 = 347,061.60/x
  3. Step 3: Cross multiply
    1,021,605.30x = 1,531,314.45 × 347,061.60
  4. Step 4: Simplify right side
    1,021,605.30x = 531,460,443,120.12
  5. Step 5: Solve for x
    x = 531,460,443,120.12/1,021,605.30
  6. Step 6: Final answer
    x = 520,220.91

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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.