Home / 1,054,564.20-1,581,920.08-423,478

Finding the Fourth Proportional to 1,054,564.20, 1,581,920.08 and 423,478

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Solution

The fourth proportional to 1,054,564.20, 1,581,920.08 and 423,478 is: 635,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,564.20 : 1,581,920.08 = 423,478 : x
  2. Step 2: Convert to fraction form
    1,054,564.20/1,581,920.08 = 423,478/x
  3. Step 3: Cross multiply
    1,054,564.20x = 1,581,920.08 × 423,478
  4. Step 4: Simplify right side
    1,054,564.20x = 669,908,351,638.24
  5. Step 5: Solve for x
    x = 669,908,351,638.24/1,054,564.20
  6. Step 6: Final answer
    x = 635,246.63

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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.