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Finding the Fourth Proportional to 746,554.88, 1,030,256.88 and 407,028.80

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Solution

The fourth proportional to 746,554.88, 1,030,256.88 and 407,028.80 is: 561,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,554.88 : 1,030,256.88 = 407,028.80 : x
  2. Step 2: Convert to fraction form
    746,554.88/1,030,256.88 = 407,028.80/x
  3. Step 3: Cross multiply
    746,554.88x = 1,030,256.88 × 407,028.80
  4. Step 4: Simplify right side
    746,554.88x = 419,344,221,558.14
  5. Step 5: Solve for x
    x = 419,344,221,558.14/746,554.88
  6. Step 6: Final answer
    x = 561,705.82

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Double scale
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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.