Home / 680,485.21-1,020,875.43-207,158.27

Finding the Fourth Proportional to 680,485.21, 1,020,875.43 and 207,158.27

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Solution

The fourth proportional to 680,485.21, 1,020,875.43 and 207,158.27 is: 310,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,485.21 : 1,020,875.43 = 207,158.27 : x
  2. Step 2: Convert to fraction form
    680,485.21/1,020,875.43 = 207,158.27/x
  3. Step 3: Cross multiply
    680,485.21x = 1,020,875.43 × 207,158.27
  4. Step 4: Simplify right side
    680,485.21x = 211,482,783,636.77
  5. Step 5: Solve for x
    x = 211,482,783,636.77/680,485.21
  6. Step 6: Final answer
    x = 310,782.34

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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.