Home / 1,488,005.70-2,232,008.55-890,808.90

Finding the Fourth Proportional to 1,488,005.70, 2,232,008.55 and 890,808.90

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Solution

The fourth proportional to 1,488,005.70, 2,232,008.55 and 890,808.90 is: 1,336,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,005.70 : 2,232,008.55 = 890,808.90 : x
  2. Step 2: Convert to fraction form
    1,488,005.70/2,232,008.55 = 890,808.90/x
  3. Step 3: Cross multiply
    1,488,005.70x = 2,232,008.55 × 890,808.90
  4. Step 4: Simplify right side
    1,488,005.70x = 1,988,293,081,216.10
  5. Step 5: Solve for x
    x = 1,988,293,081,216.10/1,488,005.70
  6. Step 6: Final answer
    x = 1,336,213.35

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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.