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Finding the Fourth Proportional to 540,967.03, 746,469.45 and 311,598.91

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Solution

The fourth proportional to 540,967.03, 746,469.45 and 311,598.91 is: 429,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,967.03 : 746,469.45 = 311,598.91 : x
  2. Step 2: Convert to fraction form
    540,967.03/746,469.45 = 311,598.91/x
  3. Step 3: Cross multiply
    540,967.03x = 746,469.45 × 311,598.91
  4. Step 4: Simplify right side
    540,967.03x = 232,599,066,968.30
  5. Step 5: Solve for x
    x = 232,599,066,968.30/540,967.03
  6. Step 6: Final answer
    x = 429,969.03

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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.