Home / 477,749.03-659,565.59-316,821.33

Finding the Fourth Proportional to 477,749.03, 659,565.59 and 316,821.33

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Solution

The fourth proportional to 477,749.03, 659,565.59 and 316,821.33 is: 437,393.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,749.03 : 659,565.59 = 316,821.33 : x
  2. Step 2: Convert to fraction form
    477,749.03/659,565.59 = 316,821.33/x
  3. Step 3: Cross multiply
    477,749.03x = 659,565.59 × 316,821.33
  4. Step 4: Simplify right side
    477,749.03x = 208,964,445,861.93
  5. Step 5: Solve for x
    x = 208,964,445,861.93/477,749.03
  6. Step 6: Final answer
    x = 437,393.77

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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.