Home / 830,002.60-1,245,003.90-761,768.20

Finding the Fourth Proportional to 830,002.60, 1,245,003.90 and 761,768.20

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Solution

The fourth proportional to 830,002.60, 1,245,003.90 and 761,768.20 is: 1,142,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,002.60 : 1,245,003.90 = 761,768.20 : x
  2. Step 2: Convert to fraction form
    830,002.60/1,245,003.90 = 761,768.20/x
  3. Step 3: Cross multiply
    830,002.60x = 1,245,003.90 × 761,768.20
  4. Step 4: Simplify right side
    830,002.60x = 948,404,379,895.98
  5. Step 5: Solve for x
    x = 948,404,379,895.98/830,002.60
  6. Step 6: Final answer
    x = 1,142,652.30

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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.