Home / 1,503,636.88-2,255,417.79-438,688.30

Finding the Fourth Proportional to 1,503,636.88, 2,255,417.79 and 438,688.30

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Solution

The fourth proportional to 1,503,636.88, 2,255,417.79 and 438,688.30 is: 658,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,636.88 : 2,255,417.79 = 438,688.30 : x
  2. Step 2: Convert to fraction form
    1,503,636.88/2,255,417.79 = 438,688.30/x
  3. Step 3: Cross multiply
    1,503,636.88x = 2,255,417.79 × 438,688.30
  4. Step 4: Simplify right side
    1,503,636.88x = 989,425,396,084.86
  5. Step 5: Solve for x
    x = 989,425,396,084.86/1,503,636.88
  6. Step 6: Final answer
    x = 658,021.50

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Double scale
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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.