Home / 915,282.78-1,263,132.63-533,247.90

Finding the Fourth Proportional to 915,282.78, 1,263,132.63 and 533,247.90

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Solution

The fourth proportional to 915,282.78, 1,263,132.63 and 533,247.90 is: 735,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,282.78 : 1,263,132.63 = 533,247.90 : x
  2. Step 2: Convert to fraction form
    915,282.78/1,263,132.63 = 533,247.90/x
  3. Step 3: Cross multiply
    915,282.78x = 1,263,132.63 × 533,247.90
  4. Step 4: Simplify right side
    915,282.78x = 673,562,822,368.98
  5. Step 5: Solve for x
    x = 673,562,822,368.98/915,282.78
  6. Step 6: Final answer
    x = 735,906.80

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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.