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Finding the Fourth Proportional to 655,771.83, 905,011.47 and 365,402.67

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Solution

The fourth proportional to 655,771.83, 905,011.47 and 365,402.67 is: 504,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,771.83 : 905,011.47 = 365,402.67 : x
  2. Step 2: Convert to fraction form
    655,771.83/905,011.47 = 365,402.67/x
  3. Step 3: Cross multiply
    655,771.83x = 905,011.47 × 365,402.67
  4. Step 4: Simplify right side
    655,771.83x = 330,693,607,518.63
  5. Step 5: Solve for x
    x = 330,693,607,518.63/655,771.83
  6. Step 6: Final answer
    x = 504,281.51

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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.