Home / 728,827.44-1,005,783.40-406,529.26

Finding the Fourth Proportional to 728,827.44, 1,005,783.40 and 406,529.26

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Solution

The fourth proportional to 728,827.44, 1,005,783.40 and 406,529.26 is: 561,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,827.44 : 1,005,783.40 = 406,529.26 : x
  2. Step 2: Convert to fraction form
    728,827.44/1,005,783.40 = 406,529.26/x
  3. Step 3: Cross multiply
    728,827.44x = 1,005,783.40 × 406,529.26
  4. Step 4: Simplify right side
    728,827.44x = 408,880,381,322.28
  5. Step 5: Solve for x
    x = 408,880,381,322.28/728,827.44
  6. Step 6: Final answer
    x = 561,011.23

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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.