Home / 1,054,179.72-1,581,564.84-423,536.40

Finding the Fourth Proportional to 1,054,179.72, 1,581,564.84 and 423,536.40

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Solution

The fourth proportional to 1,054,179.72, 1,581,564.84 and 423,536.40 is: 635,423.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,179.72 : 1,581,564.84 = 423,536.40 : x
  2. Step 2: Convert to fraction form
    1,054,179.72/1,581,564.84 = 423,536.40/x
  3. Step 3: Cross multiply
    1,054,179.72x = 1,581,564.84 × 423,536.40
  4. Step 4: Simplify right side
    1,054,179.72x = 669,850,278,700.18
  5. Step 5: Solve for x
    x = 669,850,278,700.18/1,054,179.72
  6. Step 6: Final answer
    x = 635,423.23

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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.