Home / 380,888.20-571,478.10-374,910.40

Finding the Fourth Proportional to 380,888.20, 571,478.10 and 374,910.40

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Solution

The fourth proportional to 380,888.20, 571,478.10 and 374,910.40 is: 562,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,888.20 : 571,478.10 = 374,910.40 : x
  2. Step 2: Convert to fraction form
    380,888.20/571,478.10 = 374,910.40/x
  3. Step 3: Cross multiply
    380,888.20x = 571,478.10 × 374,910.40
  4. Step 4: Simplify right side
    380,888.20x = 214,253,083,062.24
  5. Step 5: Solve for x
    x = 214,253,083,062.24/380,888.20
  6. Step 6: Final answer
    x = 562,509.11

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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.