Home / 680,504.15-1,020,070.03-427,965.08

Finding the Fourth Proportional to 680,504.15, 1,020,070.03 and 427,965.08

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Solution

The fourth proportional to 680,504.15, 1,020,070.03 and 427,965.08 is: 641,516.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,504.15 : 1,020,070.03 = 427,965.08 : x
  2. Step 2: Convert to fraction form
    680,504.15/1,020,070.03 = 427,965.08/x
  3. Step 3: Cross multiply
    680,504.15x = 1,020,070.03 × 427,965.08
  4. Step 4: Simplify right side
    680,504.15x = 436,554,351,994.55
  5. Step 5: Solve for x
    x = 436,554,351,994.55/680,504.15
  6. Step 6: Final answer
    x = 641,516.08

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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.