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Finding the Fourth Proportional to 688,018.67, 949,462.09 and 377,927.36

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Solution

The fourth proportional to 688,018.67, 949,462.09 and 377,927.36 is: 521,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,018.67 : 949,462.09 = 377,927.36 : x
  2. Step 2: Convert to fraction form
    688,018.67/949,462.09 = 377,927.36/x
  3. Step 3: Cross multiply
    688,018.67x = 949,462.09 × 377,927.36
  4. Step 4: Simplify right side
    688,018.67x = 358,827,701,093.78
  5. Step 5: Solve for x
    x = 358,827,701,093.78/688,018.67
  6. Step 6: Final answer
    x = 521,537.74

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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.