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Finding the Fourth Proportional to 771,328.56, 1,064,433.42 and 469,522.56

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Solution

The fourth proportional to 771,328.56, 1,064,433.42 and 469,522.56 is: 647,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,328.56 : 1,064,433.42 = 469,522.56 : x
  2. Step 2: Convert to fraction form
    771,328.56/1,064,433.42 = 469,522.56/x
  3. Step 3: Cross multiply
    771,328.56x = 1,064,433.42 × 469,522.56
  4. Step 4: Simplify right side
    771,328.56x = 499,775,504,307.96
  5. Step 5: Solve for x
    x = 499,775,504,307.96/771,328.56
  6. Step 6: Final answer
    x = 647,941.14

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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.