Home / 916,641.75-1,374,999.90-436,622.79

Finding the Fourth Proportional to 916,641.75, 1,374,999.90 and 436,622.79

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Solution

The fourth proportional to 916,641.75, 1,374,999.90 and 436,622.79 is: 654,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,641.75 : 1,374,999.90 = 436,622.79 : x
  2. Step 2: Convert to fraction form
    916,641.75/1,374,999.90 = 436,622.79/x
  3. Step 3: Cross multiply
    916,641.75x = 1,374,999.90 × 436,622.79
  4. Step 4: Simplify right side
    916,641.75x = 600,356,292,587.72
  5. Step 5: Solve for x
    x = 600,356,292,587.72/916,641.75
  6. Step 6: Final answer
    x = 654,951.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.