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Finding the Fourth Proportional to 556,427.05, 834,359.90 and 396,411.55

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Solution

The fourth proportional to 556,427.05, 834,359.90 and 396,411.55 is: 594,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,427.05 : 834,359.90 = 396,411.55 : x
  2. Step 2: Convert to fraction form
    556,427.05/834,359.90 = 396,411.55/x
  3. Step 3: Cross multiply
    556,427.05x = 834,359.90 × 396,411.55
  4. Step 4: Simplify right side
    556,427.05x = 330,749,901,216.85
  5. Step 5: Solve for x
    x = 330,749,901,216.85/556,427.05
  6. Step 6: Final answer
    x = 594,417.37

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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.