Home / 899,870.02-1,241,853.78-491,999.02

Finding the Fourth Proportional to 899,870.02, 1,241,853.78 and 491,999.02

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Solution

The fourth proportional to 899,870.02, 1,241,853.78 and 491,999.02 is: 678,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,870.02 : 1,241,853.78 = 491,999.02 : x
  2. Step 2: Convert to fraction form
    899,870.02/1,241,853.78 = 491,999.02/x
  3. Step 3: Cross multiply
    899,870.02x = 1,241,853.78 × 491,999.02
  4. Step 4: Simplify right side
    899,870.02x = 610,990,842,743.30
  5. Step 5: Solve for x
    x = 610,990,842,743.30/899,870.02
  6. Step 6: Final answer
    x = 678,976.77

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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.