Home / 918,578.02-1,267,718.42-505,187.64

Finding the Fourth Proportional to 918,578.02, 1,267,718.42 and 505,187.64

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Solution

The fourth proportional to 918,578.02, 1,267,718.42 and 505,187.64 is: 697,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,578.02 : 1,267,718.42 = 505,187.64 : x
  2. Step 2: Convert to fraction form
    918,578.02/1,267,718.42 = 505,187.64/x
  3. Step 3: Cross multiply
    918,578.02x = 1,267,718.42 × 505,187.64
  4. Step 4: Simplify right side
    918,578.02x = 640,435,676,784.33
  5. Step 5: Solve for x
    x = 640,435,676,784.33/918,578.02
  6. Step 6: Final answer
    x = 697,203.35

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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.