Home / 780,664.50-1,077,317.01-422,968.50

Finding the Fourth Proportional to 780,664.50, 1,077,317.01 and 422,968.50

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Solution

The fourth proportional to 780,664.50, 1,077,317.01 and 422,968.50 is: 583,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,664.50 : 1,077,317.01 = 422,968.50 : x
  2. Step 2: Convert to fraction form
    780,664.50/1,077,317.01 = 422,968.50/x
  3. Step 3: Cross multiply
    780,664.50x = 1,077,317.01 × 422,968.50
  4. Step 4: Simplify right side
    780,664.50x = 455,671,159,744.19
  5. Step 5: Solve for x
    x = 455,671,159,744.19/780,664.50
  6. Step 6: Final answer
    x = 583,696.53

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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.