Home / 525,848.42-725,819.48-311,063.16

Finding the Fourth Proportional to 525,848.42, 725,819.48 and 311,063.16

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Solution

The fourth proportional to 525,848.42, 725,819.48 and 311,063.16 is: 429,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,848.42 : 725,819.48 = 311,063.16 : x
  2. Step 2: Convert to fraction form
    525,848.42/725,819.48 = 311,063.16/x
  3. Step 3: Cross multiply
    525,848.42x = 725,819.48 × 311,063.16
  4. Step 4: Simplify right side
    525,848.42x = 225,775,701,038.36
  5. Step 5: Solve for x
    x = 225,775,701,038.36/525,848.42
  6. Step 6: Final answer
    x = 429,355.10

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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.