Home / 830,671.20-1,146,279.60-491,248.80

Finding the Fourth Proportional to 830,671.20, 1,146,279.60 and 491,248.80

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Solution

The fourth proportional to 830,671.20, 1,146,279.60 and 491,248.80 is: 677,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,671.20 : 1,146,279.60 = 491,248.80 : x
  2. Step 2: Convert to fraction form
    830,671.20/1,146,279.60 = 491,248.80/x
  3. Step 3: Cross multiply
    830,671.20x = 1,146,279.60 × 491,248.80
  4. Step 4: Simplify right side
    830,671.20x = 563,108,477,964.48
  5. Step 5: Solve for x
    x = 563,108,477,964.48/830,671.20
  6. Step 6: Final answer
    x = 677,895.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.