Home / 679,314.60-1,018,712.70-205,842.60

Finding the Fourth Proportional to 679,314.60, 1,018,712.70 and 205,842.60

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Solution

The fourth proportional to 679,314.60, 1,018,712.70 and 205,842.60 is: 308,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,314.60 : 1,018,712.70 = 205,842.60 : x
  2. Step 2: Convert to fraction form
    679,314.60/1,018,712.70 = 205,842.60/x
  3. Step 3: Cross multiply
    679,314.60x = 1,018,712.70 × 205,842.60
  4. Step 4: Simplify right side
    679,314.60x = 209,694,470,821.02
  5. Step 5: Solve for x
    x = 209,694,470,821.02/679,314.60
  6. Step 6: Final answer
    x = 308,685.36

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1.5x scale

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.