Home / 679,384.80-1,018,947.60-206,085.60

Finding the Fourth Proportional to 679,384.80, 1,018,947.60 and 206,085.60

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Solution

The fourth proportional to 679,384.80, 1,018,947.60 and 206,085.60 is: 309,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,384.80 : 1,018,947.60 = 206,085.60 : x
  2. Step 2: Convert to fraction form
    679,384.80/1,018,947.60 = 206,085.60/x
  3. Step 3: Cross multiply
    679,384.80x = 1,018,947.60 × 206,085.60
  4. Step 4: Simplify right side
    679,384.80x = 209,990,427,514.56
  5. Step 5: Solve for x
    x = 209,990,427,514.56/679,384.80
  6. Step 6: Final answer
    x = 309,089.09

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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.