Home / 790,707.98-1,091,172.42-428,124.35

Finding the Fourth Proportional to 790,707.98, 1,091,172.42 and 428,124.35

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Solution

The fourth proportional to 790,707.98, 1,091,172.42 and 428,124.35 is: 590,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,707.98 : 1,091,172.42 = 428,124.35 : x
  2. Step 2: Convert to fraction form
    790,707.98/1,091,172.42 = 428,124.35/x
  3. Step 3: Cross multiply
    790,707.98x = 1,091,172.42 × 428,124.35
  4. Step 4: Simplify right side
    790,707.98x = 467,157,477,594.57
  5. Step 5: Solve for x
    x = 467,157,477,594.57/790,707.98
  6. Step 6: Final answer
    x = 590,809.11

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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.