Home / 747,421.75-1,031,441.73-407,890

Finding the Fourth Proportional to 747,421.75, 1,031,441.73 and 407,890

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Solution

The fourth proportional to 747,421.75, 1,031,441.73 and 407,890 is: 562,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,421.75 : 1,031,441.73 = 407,890 : x
  2. Step 2: Convert to fraction form
    747,421.75/1,031,441.73 = 407,890/x
  3. Step 3: Cross multiply
    747,421.75x = 1,031,441.73 × 407,890
  4. Step 4: Simplify right side
    747,421.75x = 420,714,767,249.70
  5. Step 5: Solve for x
    x = 420,714,767,249.70/747,421.75
  6. Step 6: Final answer
    x = 562,888.04

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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.