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Finding the Fourth Proportional to 477,301.51, 658,670.74 and 355,339.20

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Solution

The fourth proportional to 477,301.51, 658,670.74 and 355,339.20 is: 490,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,301.51 : 658,670.74 = 355,339.20 : x
  2. Step 2: Convert to fraction form
    477,301.51/658,670.74 = 355,339.20/x
  3. Step 3: Cross multiply
    477,301.51x = 658,670.74 × 355,339.20
  4. Step 4: Simplify right side
    477,301.51x = 234,051,535,396.68
  5. Step 5: Solve for x
    x = 234,051,535,396.68/477,301.51
  6. Step 6: Final answer
    x = 490,364.12

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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.