Home / 808,300.56-1,114,991.76-505,969.68

Finding the Fourth Proportional to 808,300.56, 1,114,991.76 and 505,969.68

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Solution

The fourth proportional to 808,300.56, 1,114,991.76 and 505,969.68 is: 697,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,300.56 : 1,114,991.76 = 505,969.68 : x
  2. Step 2: Convert to fraction form
    808,300.56/1,114,991.76 = 505,969.68/x
  3. Step 3: Cross multiply
    808,300.56x = 1,114,991.76 × 505,969.68
  4. Step 4: Simplify right side
    808,300.56x = 564,152,024,009.84
  5. Step 5: Solve for x
    x = 564,152,024,009.84/808,300.56
  6. Step 6: Final answer
    x = 697,948.33

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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.