Home / 407,052.14-561,083.10-320,870.67

Finding the Fourth Proportional to 407,052.14, 561,083.10 and 320,870.67

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Solution

The fourth proportional to 407,052.14, 561,083.10 and 320,870.67 is: 442,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,052.14 : 561,083.10 = 320,870.67 : x
  2. Step 2: Convert to fraction form
    407,052.14/561,083.10 = 320,870.67/x
  3. Step 3: Cross multiply
    407,052.14x = 561,083.10 × 320,870.67
  4. Step 4: Simplify right side
    407,052.14x = 180,035,110,222.68
  5. Step 5: Solve for x
    x = 180,035,110,222.68/407,052.14
  6. Step 6: Final answer
    x = 442,290.05

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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.