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Finding the Fourth Proportional to 450,054.77, 621,075.74 and 256,456.94

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Solution

The fourth proportional to 450,054.77, 621,075.74 and 256,456.94 is: 353,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,054.77 : 621,075.74 = 256,456.94 : x
  2. Step 2: Convert to fraction form
    450,054.77/621,075.74 = 256,456.94/x
  3. Step 3: Cross multiply
    450,054.77x = 621,075.74 × 256,456.94
  4. Step 4: Simplify right side
    450,054.77x = 159,279,179,400.97
  5. Step 5: Solve for x
    x = 159,279,179,400.97/450,054.77
  6. Step 6: Final answer
    x = 353,910.66

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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.