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Finding the Fourth Proportional to 556,022.28, 767,311.56 and 301,373.40

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Solution

The fourth proportional to 556,022.28, 767,311.56 and 301,373.40 is: 415,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,022.28 : 767,311.56 = 301,373.40 : x
  2. Step 2: Convert to fraction form
    556,022.28/767,311.56 = 301,373.40/x
  3. Step 3: Cross multiply
    556,022.28x = 767,311.56 × 301,373.40
  4. Step 4: Simplify right side
    556,022.28x = 231,247,293,696.50
  5. Step 5: Solve for x
    x = 231,247,293,696.50/556,022.28
  6. Step 6: Final answer
    x = 415,895.73

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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.