Home / 1,247,833.80-1,871,750.70-406,470.60

Finding the Fourth Proportional to 1,247,833.80, 1,871,750.70 and 406,470.60

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Solution

The fourth proportional to 1,247,833.80, 1,871,750.70 and 406,470.60 is: 609,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,833.80 : 1,871,750.70 = 406,470.60 : x
  2. Step 2: Convert to fraction form
    1,247,833.80/1,871,750.70 = 406,470.60/x
  3. Step 3: Cross multiply
    1,247,833.80x = 1,871,750.70 × 406,470.60
  4. Step 4: Simplify right side
    1,247,833.80x = 760,811,630,079.42
  5. Step 5: Solve for x
    x = 760,811,630,079.42/1,247,833.80
  6. Step 6: Final answer
    x = 609,705.90

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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.