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Finding the Fourth Proportional to 797,728.17, 1,100,871.89 and 435,153.67

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Solution

The fourth proportional to 797,728.17, 1,100,871.89 and 435,153.67 is: 600,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,728.17 : 1,100,871.89 = 435,153.67 : x
  2. Step 2: Convert to fraction form
    797,728.17/1,100,871.89 = 435,153.67/x
  3. Step 3: Cross multiply
    797,728.17x = 1,100,871.89 × 435,153.67
  4. Step 4: Simplify right side
    797,728.17x = 479,048,443,133.34
  5. Step 5: Solve for x
    x = 479,048,443,133.34/797,728.17
  6. Step 6: Final answer
    x = 600,515.89

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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.