Home / 990,380.01-1,485,670.35-341,871.67

Finding the Fourth Proportional to 990,380.01, 1,485,670.35 and 341,871.67

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Solution

The fourth proportional to 990,380.01, 1,485,670.35 and 341,871.67 is: 512,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,380.01 : 1,485,670.35 = 341,871.67 : x
  2. Step 2: Convert to fraction form
    990,380.01/1,485,670.35 = 341,871.67/x
  3. Step 3: Cross multiply
    990,380.01x = 1,485,670.35 × 341,871.67
  4. Step 4: Simplify right side
    990,380.01x = 507,908,608,841.77
  5. Step 5: Solve for x
    x = 507,908,608,841.77/990,380.01
  6. Step 6: Final answer
    x = 512,842.15

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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.