Home / 919,643.88-1,379,534.80-245,710.10

Finding the Fourth Proportional to 919,643.88, 1,379,534.80 and 245,710.10

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Solution

The fourth proportional to 919,643.88, 1,379,534.80 and 245,710.10 is: 368,583.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,643.88 : 1,379,534.80 = 245,710.10 : x
  2. Step 2: Convert to fraction form
    919,643.88/1,379,534.80 = 245,710.10/x
  3. Step 3: Cross multiply
    919,643.88x = 1,379,534.80 × 245,710.10
  4. Step 4: Simplify right side
    919,643.88x = 338,965,633,661.48
  5. Step 5: Solve for x
    x = 338,965,633,661.48/919,643.88
  6. Step 6: Final answer
    x = 368,583.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.