Home / 595,021.20-821,128.32-326,749.20

Finding the Fourth Proportional to 595,021.20, 821,128.32 and 326,749.20

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Solution

The fourth proportional to 595,021.20, 821,128.32 and 326,749.20 is: 450,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,021.20 : 821,128.32 = 326,749.20 : x
  2. Step 2: Convert to fraction form
    595,021.20/821,128.32 = 326,749.20/x
  3. Step 3: Cross multiply
    595,021.20x = 821,128.32 × 326,749.20
  4. Step 4: Simplify right side
    595,021.20x = 268,303,021,657.34
  5. Step 5: Solve for x
    x = 268,303,021,657.34/595,021.20
  6. Step 6: Final answer
    x = 450,913.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.