Home / 1,079,812.08-1,490,199.12-620,921.16

Finding the Fourth Proportional to 1,079,812.08, 1,490,199.12 and 620,921.16

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Solution

The fourth proportional to 1,079,812.08, 1,490,199.12 and 620,921.16 is: 856,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,812.08 : 1,490,199.12 = 620,921.16 : x
  2. Step 2: Convert to fraction form
    1,079,812.08/1,490,199.12 = 620,921.16/x
  3. Step 3: Cross multiply
    1,079,812.08x = 1,490,199.12 × 620,921.16
  4. Step 4: Simplify right side
    1,079,812.08x = 925,296,166,221.38
  5. Step 5: Solve for x
    x = 925,296,166,221.38/1,079,812.08
  6. Step 6: Final answer
    x = 856,904.81

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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.