Home / 715,505.45-1,071,486.71-525,515.30

Finding the Fourth Proportional to 715,505.45, 1,071,486.71 and 525,515.30

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Solution

The fourth proportional to 715,505.45, 1,071,486.71 and 525,515.30 is: 786,971.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,505.45 : 1,071,486.71 = 525,515.30 : x
  2. Step 2: Convert to fraction form
    715,505.45/1,071,486.71 = 525,515.30/x
  3. Step 3: Cross multiply
    715,505.45x = 1,071,486.71 × 525,515.30
  4. Step 4: Simplify right side
    715,505.45x = 563,082,653,837.34
  5. Step 5: Solve for x
    x = 563,082,653,837.34/715,505.45
  6. Step 6: Final answer
    x = 786,971.86

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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.