Home / 999,167.40-1,378,865.53-563,605.54

Finding the Fourth Proportional to 999,167.40, 1,378,865.53 and 563,605.54

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Solution

The fourth proportional to 999,167.40, 1,378,865.53 and 563,605.54 is: 777,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,167.40 : 1,378,865.53 = 563,605.54 : x
  2. Step 2: Convert to fraction form
    999,167.40/1,378,865.53 = 563,605.54/x
  3. Step 3: Cross multiply
    999,167.40x = 1,378,865.53 × 563,605.54
  4. Step 4: Simplify right side
    999,167.40x = 777,136,256,636.50
  5. Step 5: Solve for x
    x = 777,136,256,636.50/999,167.40
  6. Step 6: Final answer
    x = 777,783.84

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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.