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Finding the Fourth Proportional to 556,025.78, 767,316.40 and 301,376.90

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Solution

The fourth proportional to 556,025.78, 767,316.40 and 301,376.90 is: 415,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,025.78 : 767,316.40 = 301,376.90 : x
  2. Step 2: Convert to fraction form
    556,025.78/767,316.40 = 301,376.90/x
  3. Step 3: Cross multiply
    556,025.78x = 767,316.40 × 301,376.90
  4. Step 4: Simplify right side
    556,025.78x = 231,251,437,951.16
  5. Step 5: Solve for x
    x = 231,251,437,951.16/556,025.78
  6. Step 6: Final answer
    x = 415,900.57

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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.