Home / 1,243,655.60-1,864,561.80-843,297.20

Finding the Fourth Proportional to 1,243,655.60, 1,864,561.80 and 843,297.20

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Solution

The fourth proportional to 1,243,655.60, 1,864,561.80 and 843,297.20 is: 1,264,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,655.60 : 1,864,561.80 = 843,297.20 : x
  2. Step 2: Convert to fraction form
    1,243,655.60/1,864,561.80 = 843,297.20/x
  3. Step 3: Cross multiply
    1,243,655.60x = 1,864,561.80 × 843,297.20
  4. Step 4: Simplify right side
    1,243,655.60x = 1,572,379,745,166.96
  5. Step 5: Solve for x
    x = 1,572,379,745,166.96/1,243,655.60
  6. Step 6: Final answer
    x = 1,264,320.88

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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.