Home / 889,675.80-1,334,513.70-511,762.20

Finding the Fourth Proportional to 889,675.80, 1,334,513.70 and 511,762.20

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Solution

The fourth proportional to 889,675.80, 1,334,513.70 and 511,762.20 is: 767,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,675.80 : 1,334,513.70 = 511,762.20 : x
  2. Step 2: Convert to fraction form
    889,675.80/1,334,513.70 = 511,762.20/x
  3. Step 3: Cross multiply
    889,675.80x = 1,334,513.70 × 511,762.20
  4. Step 4: Simplify right side
    889,675.80x = 682,953,667,042.14
  5. Step 5: Solve for x
    x = 682,953,667,042.14/889,675.80
  6. Step 6: Final answer
    x = 767,643.30

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Double scale
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Similar ratio
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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.