Home / 947,792.63-1,421,688.95-379,429.61

Finding the Fourth Proportional to 947,792.63, 1,421,688.95 and 379,429.61

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Solution

The fourth proportional to 947,792.63, 1,421,688.95 and 379,429.61 is: 569,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,792.63 : 1,421,688.95 = 379,429.61 : x
  2. Step 2: Convert to fraction form
    947,792.63/1,421,688.95 = 379,429.61/x
  3. Step 3: Cross multiply
    947,792.63x = 1,421,688.95 × 379,429.61
  4. Step 4: Simplify right side
    947,792.63x = 539,430,874,834.22
  5. Step 5: Solve for x
    x = 539,430,874,834.22/947,792.63
  6. Step 6: Final answer
    x = 569,144.41

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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.