Home / 729,220.16-1,006,323.84-402,533.25

Finding the Fourth Proportional to 729,220.16, 1,006,323.84 and 402,533.25

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Solution

The fourth proportional to 729,220.16, 1,006,323.84 and 402,533.25 is: 555,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,220.16 : 1,006,323.84 = 402,533.25 : x
  2. Step 2: Convert to fraction form
    729,220.16/1,006,323.84 = 402,533.25/x
  3. Step 3: Cross multiply
    729,220.16x = 1,006,323.84 × 402,533.25
  4. Step 4: Simplify right side
    729,220.16x = 405,078,805,867.68
  5. Step 5: Solve for x
    x = 405,078,805,867.68/729,220.16
  6. Step 6: Final answer
    x = 555,495.90

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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.