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Finding the Fourth Proportional to 556,027.28, 767,318.47 and 301,378.40

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Solution

The fourth proportional to 556,027.28, 767,318.47 and 301,378.40 is: 415,902.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,027.28 : 767,318.47 = 301,378.40 : x
  2. Step 2: Convert to fraction form
    556,027.28/767,318.47 = 301,378.40/x
  3. Step 3: Cross multiply
    556,027.28x = 767,318.47 × 301,378.40
  4. Step 4: Simplify right side
    556,027.28x = 231,253,212,779.05
  5. Step 5: Solve for x
    x = 231,253,212,779.05/556,027.28
  6. Step 6: Final answer
    x = 415,902.64

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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.