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Finding the Fourth Proportional to 418,758.76, 576,428.48 and 364,950.46

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Solution

The fourth proportional to 418,758.76, 576,428.48 and 364,950.46 is: 502,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,758.76 : 576,428.48 = 364,950.46 : x
  2. Step 2: Convert to fraction form
    418,758.76/576,428.48 = 364,950.46/x
  3. Step 3: Cross multiply
    418,758.76x = 576,428.48 × 364,950.46
  4. Step 4: Simplify right side
    418,758.76x = 210,367,836,050.96
  5. Step 5: Solve for x
    x = 210,367,836,050.96/418,758.76
  6. Step 6: Final answer
    x = 502,360.45

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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.