Home / 1,109,782.80-1,531,505.40-626,368.32

Finding the Fourth Proportional to 1,109,782.80, 1,531,505.40 and 626,368.32

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Solution

The fourth proportional to 1,109,782.80, 1,531,505.40 and 626,368.32 is: 864,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,782.80 : 1,531,505.40 = 626,368.32 : x
  2. Step 2: Convert to fraction form
    1,109,782.80/1,531,505.40 = 626,368.32/x
  3. Step 3: Cross multiply
    1,109,782.80x = 1,531,505.40 × 626,368.32
  4. Step 4: Simplify right side
    1,109,782.80x = 959,286,464,468.93
  5. Step 5: Solve for x
    x = 959,286,464,468.93/1,109,782.80
  6. Step 6: Final answer
    x = 864,391.18

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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.