Home / 747,420.75-1,031,440.35-407,889

Finding the Fourth Proportional to 747,420.75, 1,031,440.35 and 407,889

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Solution

The fourth proportional to 747,420.75, 1,031,440.35 and 407,889 is: 562,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,420.75 : 1,031,440.35 = 407,889 : x
  2. Step 2: Convert to fraction form
    747,420.75/1,031,440.35 = 407,889/x
  3. Step 3: Cross multiply
    747,420.75x = 1,031,440.35 × 407,889
  4. Step 4: Simplify right side
    747,420.75x = 420,713,172,921.15
  5. Step 5: Solve for x
    x = 420,713,172,921.15/747,420.75
  6. Step 6: Final answer
    x = 562,886.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.