Home / 729,238.18-1,006,228.34-406,947.50

Finding the Fourth Proportional to 729,238.18, 1,006,228.34 and 406,947.50

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Solution

The fourth proportional to 729,238.18, 1,006,228.34 and 406,947.50 is: 561,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,238.18 : 1,006,228.34 = 406,947.50 : x
  2. Step 2: Convert to fraction form
    729,238.18/1,006,228.34 = 406,947.50/x
  3. Step 3: Cross multiply
    729,238.18x = 1,006,228.34 × 406,947.50
  4. Step 4: Simplify right side
    729,238.18x = 409,482,107,392.15
  5. Step 5: Solve for x
    x = 409,482,107,392.15/729,238.18
  6. Step 6: Final answer
    x = 561,520.39

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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.