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Finding the Fourth Proportional to 340,774.71, 510,374.34 and 328,964.91

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Solution

The fourth proportional to 340,774.71, 510,374.34 and 328,964.91 is: 492,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,774.71 : 510,374.34 = 328,964.91 : x
  2. Step 2: Convert to fraction form
    340,774.71/510,374.34 = 328,964.91/x
  3. Step 3: Cross multiply
    340,774.71x = 510,374.34 × 328,964.91
  4. Step 4: Simplify right side
    340,774.71x = 167,895,248,824.41
  5. Step 5: Solve for x
    x = 167,895,248,824.41/340,774.71
  6. Step 6: Final answer
    x = 492,686.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.