Home / 947,339.60-1,421,009.40-820,158.80

Finding the Fourth Proportional to 947,339.60, 1,421,009.40 and 820,158.80

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Solution

The fourth proportional to 947,339.60, 1,421,009.40 and 820,158.80 is: 1,230,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,339.60 : 1,421,009.40 = 820,158.80 : x
  2. Step 2: Convert to fraction form
    947,339.60/1,421,009.40 = 820,158.80/x
  3. Step 3: Cross multiply
    947,339.60x = 1,421,009.40 × 820,158.80
  4. Step 4: Simplify right side
    947,339.60x = 1,165,453,364,292.72
  5. Step 5: Solve for x
    x = 1,165,453,364,292.72/947,339.60
  6. Step 6: Final answer
    x = 1,230,238.20

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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.