Home / 683,897.60-1,025,749.20-210,630.80

Finding the Fourth Proportional to 683,897.60, 1,025,749.20 and 210,630.80

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Solution

The fourth proportional to 683,897.60, 1,025,749.20 and 210,630.80 is: 315,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,897.60 : 1,025,749.20 = 210,630.80 : x
  2. Step 2: Convert to fraction form
    683,897.60/1,025,749.20 = 210,630.80/x
  3. Step 3: Cross multiply
    683,897.60x = 1,025,749.20 × 210,630.80
  4. Step 4: Simplify right side
    683,897.60x = 216,054,374,595.36
  5. Step 5: Solve for x
    x = 216,054,374,595.36/683,897.60
  6. Step 6: Final answer
    x = 315,916.26

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1.5x scale

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.