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Finding the Fourth Proportional to 611,059.02, 916,034.49 and 330,248.22

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Solution

The fourth proportional to 611,059.02, 916,034.49 and 330,248.22 is: 495,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,059.02 : 916,034.49 = 330,248.22 : x
  2. Step 2: Convert to fraction form
    611,059.02/916,034.49 = 330,248.22/x
  3. Step 3: Cross multiply
    611,059.02x = 916,034.49 × 330,248.22
  4. Step 4: Simplify right side
    611,059.02x = 302,518,759,781.11
  5. Step 5: Solve for x
    x = 302,518,759,781.11/611,059.02
  6. Step 6: Final answer
    x = 495,072.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.