Home / 723,820.69-1,085,738.90-218,386.20

Finding the Fourth Proportional to 723,820.69, 1,085,738.90 and 218,386.20

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Solution

The fourth proportional to 723,820.69, 1,085,738.90 and 218,386.20 is: 327,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,820.69 : 1,085,738.90 = 218,386.20 : x
  2. Step 2: Convert to fraction form
    723,820.69/1,085,738.90 = 218,386.20/x
  3. Step 3: Cross multiply
    723,820.69x = 1,085,738.90 × 218,386.20
  4. Step 4: Simplify right side
    723,820.69x = 237,110,392,563.18
  5. Step 5: Solve for x
    x = 237,110,392,563.18/723,820.69
  6. Step 6: Final answer
    x = 327,581.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.