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Finding the Fourth Proportional to 671,306.58, 926,424.81 and 384,880.86

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Solution

The fourth proportional to 671,306.58, 926,424.81 and 384,880.86 is: 531,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,306.58 : 926,424.81 = 384,880.86 : x
  2. Step 2: Convert to fraction form
    671,306.58/926,424.81 = 384,880.86/x
  3. Step 3: Cross multiply
    671,306.58x = 926,424.81 × 384,880.86
  4. Step 4: Simplify right side
    671,306.58x = 356,563,177,598.14
  5. Step 5: Solve for x
    x = 356,563,177,598.14/671,306.58
  6. Step 6: Final answer
    x = 531,148.05

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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.