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Finding the Fourth Proportional to 724,499.52, 999,813.81 and 397,826.66

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Solution

The fourth proportional to 724,499.52, 999,813.81 and 397,826.66 is: 549,003.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,499.52 : 999,813.81 = 397,826.66 : x
  2. Step 2: Convert to fraction form
    724,499.52/999,813.81 = 397,826.66/x
  3. Step 3: Cross multiply
    724,499.52x = 999,813.81 × 397,826.66
  4. Step 4: Simplify right side
    724,499.52x = 397,752,583,655.11
  5. Step 5: Solve for x
    x = 397,752,583,655.11/724,499.52
  6. Step 6: Final answer
    x = 549,003.24

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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.