Home / 1,179,554.28-1,768,881.84-421,254.12

Finding the Fourth Proportional to 1,179,554.28, 1,768,881.84 and 421,254.12

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Solution

The fourth proportional to 1,179,554.28, 1,768,881.84 and 421,254.12 is: 631,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,554.28 : 1,768,881.84 = 421,254.12 : x
  2. Step 2: Convert to fraction form
    1,179,554.28/1,768,881.84 = 421,254.12/x
  3. Step 3: Cross multiply
    1,179,554.28x = 1,768,881.84 × 421,254.12
  4. Step 4: Simplify right side
    1,179,554.28x = 745,148,762,893.18
  5. Step 5: Solve for x
    x = 745,148,762,893.18/1,179,554.28
  6. Step 6: Final answer
    x = 631,720.62

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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.