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Finding the Fourth Proportional to 575,823.96, 794,639.81 and 317,700.90

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Solution

The fourth proportional to 575,823.96, 794,639.81 and 317,700.90 is: 438,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,823.96 : 794,639.81 = 317,700.90 : x
  2. Step 2: Convert to fraction form
    575,823.96/794,639.81 = 317,700.90/x
  3. Step 3: Cross multiply
    575,823.96x = 794,639.81 × 317,700.90
  4. Step 4: Simplify right side
    575,823.96x = 252,457,783,607.08
  5. Step 5: Solve for x
    x = 252,457,783,607.08/575,823.96
  6. Step 6: Final answer
    x = 438,428.76

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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.