Home / 715,374.90-1,072,895.85-266,307.30

Finding the Fourth Proportional to 715,374.90, 1,072,895.85 and 266,307.30

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Solution

The fourth proportional to 715,374.90, 1,072,895.85 and 266,307.30 is: 399,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,374.90 : 1,072,895.85 = 266,307.30 : x
  2. Step 2: Convert to fraction form
    715,374.90/1,072,895.85 = 266,307.30/x
  3. Step 3: Cross multiply
    715,374.90x = 1,072,895.85 × 266,307.30
  4. Step 4: Simplify right side
    715,374.90x = 285,719,996,994.71
  5. Step 5: Solve for x
    x = 285,719,996,994.71/715,374.90
  6. Step 6: Final answer
    x = 399,398.97

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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.