Home / 480,931.38-663,276.21-289,904.82

Finding the Fourth Proportional to 480,931.38, 663,276.21 and 289,904.82

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Solution

The fourth proportional to 480,931.38, 663,276.21 and 289,904.82 is: 399,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,931.38 : 663,276.21 = 289,904.82 : x
  2. Step 2: Convert to fraction form
    480,931.38/663,276.21 = 289,904.82/x
  3. Step 3: Cross multiply
    480,931.38x = 663,276.21 × 289,904.82
  4. Step 4: Simplify right side
    480,931.38x = 192,286,970,270.33
  5. Step 5: Solve for x
    x = 192,286,970,270.33/480,931.38
  6. Step 6: Final answer
    x = 399,822.05

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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.