Home / 817,759.49-1,128,482.96-455,174.01

Finding the Fourth Proportional to 817,759.49, 1,128,482.96 and 455,174.01

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Solution

The fourth proportional to 817,759.49, 1,128,482.96 and 455,174.01 is: 628,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,759.49 : 1,128,482.96 = 455,174.01 : x
  2. Step 2: Convert to fraction form
    817,759.49/1,128,482.96 = 455,174.01/x
  3. Step 3: Cross multiply
    817,759.49x = 1,128,482.96 × 455,174.01
  4. Step 4: Simplify right side
    817,759.49x = 513,656,111,844.00
  5. Step 5: Solve for x
    x = 513,656,111,844.00/817,759.49
  6. Step 6: Final answer
    x = 628,126.14

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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.