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Finding the Fourth Proportional to 669,398, 923,775.72 and 367,598.48

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Solution

The fourth proportional to 669,398, 923,775.72 and 367,598.48 is: 507,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,398 : 923,775.72 = 367,598.48 : x
  2. Step 2: Convert to fraction form
    669,398/923,775.72 = 367,598.48/x
  3. Step 3: Cross multiply
    669,398x = 923,775.72 × 367,598.48
  4. Step 4: Simplify right side
    669,398x = 339,578,550,532.91
  5. Step 5: Solve for x
    x = 339,578,550,532.91/669,398
  6. Step 6: Final answer
    x = 507,289.46

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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.