Home / 727,600.32-1,004,106-405,315.60

Finding the Fourth Proportional to 727,600.32, 1,004,106 and 405,315.60

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Solution

The fourth proportional to 727,600.32, 1,004,106 and 405,315.60 is: 559,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,600.32 : 1,004,106 = 405,315.60 : x
  2. Step 2: Convert to fraction form
    727,600.32/1,004,106 = 405,315.60/x
  3. Step 3: Cross multiply
    727,600.32x = 1,004,106 × 405,315.60
  4. Step 4: Simplify right side
    727,600.32x = 406,979,825,853.60
  5. Step 5: Solve for x
    x = 406,979,825,853.60/727,600.32
  6. Step 6: Final answer
    x = 559,345.31

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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.