Home / 506,341.17-698,749.07-279,986.67

Finding the Fourth Proportional to 506,341.17, 698,749.07 and 279,986.67

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Solution

The fourth proportional to 506,341.17, 698,749.07 and 279,986.67 is: 386,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,341.17 : 698,749.07 = 279,986.67 : x
  2. Step 2: Convert to fraction form
    506,341.17/698,749.07 = 279,986.67/x
  3. Step 3: Cross multiply
    506,341.17x = 698,749.07 × 279,986.67
  4. Step 4: Simplify right side
    506,341.17x = 195,640,423,874.96
  5. Step 5: Solve for x
    x = 195,640,423,874.96/506,341.17
  6. Step 6: Final answer
    x = 386,380.64

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1.5x scale

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.