Home / 477,749.28-659,565.93-316,821.58

Finding the Fourth Proportional to 477,749.28, 659,565.93 and 316,821.58

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Solution

The fourth proportional to 477,749.28, 659,565.93 and 316,821.58 is: 437,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,749.28 : 659,565.93 = 316,821.58 : x
  2. Step 2: Convert to fraction form
    477,749.28/659,565.93 = 316,821.58/x
  3. Step 3: Cross multiply
    477,749.28x = 659,565.93 × 316,821.58
  4. Step 4: Simplify right side
    477,749.28x = 208,964,720,056.77
  5. Step 5: Solve for x
    x = 208,964,720,056.77/477,749.28
  6. Step 6: Final answer
    x = 437,394.11

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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.