Home / 1,091,749.20-1,637,854.20-343,870.80

Finding the Fourth Proportional to 1,091,749.20, 1,637,854.20 and 343,870.80

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Solution

The fourth proportional to 1,091,749.20, 1,637,854.20 and 343,870.80 is: 515,878.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,749.20 : 1,637,854.20 = 343,870.80 : x
  2. Step 2: Convert to fraction form
    1,091,749.20/1,637,854.20 = 343,870.80/x
  3. Step 3: Cross multiply
    1,091,749.20x = 1,637,854.20 × 343,870.80
  4. Step 4: Simplify right side
    1,091,749.20x = 563,210,234,037.36
  5. Step 5: Solve for x
    x = 563,210,234,037.36/1,091,749.20
  6. Step 6: Final answer
    x = 515,878.77

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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.