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Finding the Fourth Proportional to 890,653.80, 1,334,814.30 and 790,343.40

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Solution

The fourth proportional to 890,653.80, 1,334,814.30 and 790,343.40 is: 1,184,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,653.80 : 1,334,814.30 = 790,343.40 : x
  2. Step 2: Convert to fraction form
    890,653.80/1,334,814.30 = 790,343.40/x
  3. Step 3: Cross multiply
    890,653.80x = 1,334,814.30 × 790,343.40
  4. Step 4: Simplify right side
    890,653.80x = 1,054,961,672,230.62
  5. Step 5: Solve for x
    x = 1,054,961,672,230.62/890,653.80
  6. Step 6: Final answer
    x = 1,184,480.07

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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.