Home / 779,632.64-1,075,894.08-421,936.64

Finding the Fourth Proportional to 779,632.64, 1,075,894.08 and 421,936.64

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Solution

The fourth proportional to 779,632.64, 1,075,894.08 and 421,936.64 is: 582,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,632.64 : 1,075,894.08 = 421,936.64 : x
  2. Step 2: Convert to fraction form
    779,632.64/1,075,894.08 = 421,936.64/x
  3. Step 3: Cross multiply
    779,632.64x = 1,075,894.08 × 421,936.64
  4. Step 4: Simplify right side
    779,632.64x = 453,959,133,111.09
  5. Step 5: Solve for x
    x = 453,959,133,111.09/779,632.64
  6. Step 6: Final answer
    x = 582,273.12

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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.