Home / 712,866.30-1,069,299.45-214,230.30

Finding the Fourth Proportional to 712,866.30, 1,069,299.45 and 214,230.30

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Solution

The fourth proportional to 712,866.30, 1,069,299.45 and 214,230.30 is: 321,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,866.30 : 1,069,299.45 = 214,230.30 : x
  2. Step 2: Convert to fraction form
    712,866.30/1,069,299.45 = 214,230.30/x
  3. Step 3: Cross multiply
    712,866.30x = 1,069,299.45 × 214,230.30
  4. Step 4: Simplify right side
    712,866.30x = 229,076,341,963.34
  5. Step 5: Solve for x
    x = 229,076,341,963.34/712,866.30
  6. Step 6: Final answer
    x = 321,345.45

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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.