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Finding the Fourth Proportional to 561,527.88, 774,914.18 and 306,879.08

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Solution

The fourth proportional to 561,527.88, 774,914.18 and 306,879.08 is: 423,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,527.88 : 774,914.18 = 306,879.08 : x
  2. Step 2: Convert to fraction form
    561,527.88/774,914.18 = 306,879.08/x
  3. Step 3: Cross multiply
    561,527.88x = 774,914.18 × 306,879.08
  4. Step 4: Simplify right side
    561,527.88x = 237,804,950,637.35
  5. Step 5: Solve for x
    x = 237,804,950,637.35/561,527.88
  6. Step 6: Final answer
    x = 423,496.25

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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.