Home / 712,871.80-1,069,307.70-214,235.80

Finding the Fourth Proportional to 712,871.80, 1,069,307.70 and 214,235.80

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Solution

The fourth proportional to 712,871.80, 1,069,307.70 and 214,235.80 is: 321,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,871.80 : 1,069,307.70 = 214,235.80 : x
  2. Step 2: Convert to fraction form
    712,871.80/1,069,307.70 = 214,235.80/x
  3. Step 3: Cross multiply
    712,871.80x = 1,069,307.70 × 214,235.80
  4. Step 4: Simplify right side
    712,871.80x = 229,083,990,555.66
  5. Step 5: Solve for x
    x = 229,083,990,555.66/712,871.80
  6. Step 6: Final answer
    x = 321,353.70

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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.