Home / 449,746.34-620,590.01-288,819.36

Finding the Fourth Proportional to 449,746.34, 620,590.01 and 288,819.36

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Solution

The fourth proportional to 449,746.34, 620,590.01 and 288,819.36 is: 398,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,746.34 : 620,590.01 = 288,819.36 : x
  2. Step 2: Convert to fraction form
    449,746.34/620,590.01 = 288,819.36/x
  3. Step 3: Cross multiply
    449,746.34x = 620,590.01 × 288,819.36
  4. Step 4: Simplify right side
    449,746.34x = 179,238,408,066.50
  5. Step 5: Solve for x
    x = 179,238,408,066.50/449,746.34
  6. Step 6: Final answer
    x = 398,532.23

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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.