Home / 915,024.78-1,371,188.28-509,658.66

Finding the Fourth Proportional to 915,024.78, 1,371,188.28 and 509,658.66

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Solution

The fourth proportional to 915,024.78, 1,371,188.28 and 509,658.66 is: 763,736.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,024.78 : 1,371,188.28 = 509,658.66 : x
  2. Step 2: Convert to fraction form
    915,024.78/1,371,188.28 = 509,658.66/x
  3. Step 3: Cross multiply
    915,024.78x = 1,371,188.28 × 509,658.66
  4. Step 4: Simplify right side
    915,024.78x = 698,837,981,392.51
  5. Step 5: Solve for x
    x = 698,837,981,392.51/915,024.78
  6. Step 6: Final answer
    x = 763,736.67

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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.