Home / 947,342.60-1,421,013.90-820,161.80

Finding the Fourth Proportional to 947,342.60, 1,421,013.90 and 820,161.80

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Solution

The fourth proportional to 947,342.60, 1,421,013.90 and 820,161.80 is: 1,230,242.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,342.60 : 1,421,013.90 = 820,161.80 : x
  2. Step 2: Convert to fraction form
    947,342.60/1,421,013.90 = 820,161.80/x
  3. Step 3: Cross multiply
    947,342.60x = 1,421,013.90 × 820,161.80
  4. Step 4: Simplify right side
    947,342.60x = 1,165,461,318,049.02
  5. Step 5: Solve for x
    x = 1,165,461,318,049.02/947,342.60
  6. Step 6: Final answer
    x = 1,230,242.70

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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.