Home / 427,744.24-589,883.12-319,088.40

Finding the Fourth Proportional to 427,744.24, 589,883.12 and 319,088.40

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Solution

The fourth proportional to 427,744.24, 589,883.12 and 319,088.40 is: 440,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,744.24 : 589,883.12 = 319,088.40 : x
  2. Step 2: Convert to fraction form
    427,744.24/589,883.12 = 319,088.40/x
  3. Step 3: Cross multiply
    427,744.24x = 589,883.12 × 319,088.40
  4. Step 4: Simplify right side
    427,744.24x = 188,224,860,947.81
  5. Step 5: Solve for x
    x = 188,224,860,947.81/427,744.24
  6. Step 6: Final answer
    x = 440,040.67

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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.