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Finding the Fourth Proportional to 576,931.79, 796,163.88 and 318,801.54

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Solution

The fourth proportional to 576,931.79, 796,163.88 and 318,801.54 is: 439,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,931.79 : 796,163.88 = 318,801.54 : x
  2. Step 2: Convert to fraction form
    576,931.79/796,163.88 = 318,801.54/x
  3. Step 3: Cross multiply
    576,931.79x = 796,163.88 × 318,801.54
  4. Step 4: Simplify right side
    576,931.79x = 253,818,271,036.38
  5. Step 5: Solve for x
    x = 253,818,271,036.38/576,931.79
  6. Step 6: Final answer
    x = 439,945.03

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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.