Home / 1,018,245.50-1,405,178.79-565,578.62

Finding the Fourth Proportional to 1,018,245.50, 1,405,178.79 and 565,578.62

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Solution

The fourth proportional to 1,018,245.50, 1,405,178.79 and 565,578.62 is: 780,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,245.50 : 1,405,178.79 = 565,578.62 : x
  2. Step 2: Convert to fraction form
    1,018,245.50/1,405,178.79 = 565,578.62/x
  3. Step 3: Cross multiply
    1,018,245.50x = 1,405,178.79 × 565,578.62
  4. Step 4: Simplify right side
    1,018,245.50x = 794,739,080,901.47
  5. Step 5: Solve for x
    x = 794,739,080,901.47/1,018,245.50
  6. Step 6: Final answer
    x = 780,498.50

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1.5x scale

Why These Related Problems?

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