Home / 1,213,762.84-1,670,498.56-890,961.64

Finding the Fourth Proportional to 1,213,762.84, 1,670,498.56 and 890,961.64

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Solution

The fourth proportional to 1,213,762.84, 1,670,498.56 and 890,961.64 is: 1,226,228.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,762.84 : 1,670,498.56 = 890,961.64 : x
  2. Step 2: Convert to fraction form
    1,213,762.84/1,670,498.56 = 890,961.64/x
  3. Step 3: Cross multiply
    1,213,762.84x = 1,670,498.56 × 890,961.64
  4. Step 4: Simplify right side
    1,213,762.84x = 1,488,350,136,635.24
  5. Step 5: Solve for x
    x = 1,488,350,136,635.24/1,213,762.84
  6. Step 6: Final answer
    x = 1,226,228.13

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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.