Home / 852,405.78-1,176,285.60-470,427.60

Finding the Fourth Proportional to 852,405.78, 1,176,285.60 and 470,427.60

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Solution

The fourth proportional to 852,405.78, 1,176,285.60 and 470,427.60 is: 649,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,405.78 : 1,176,285.60 = 470,427.60 : x
  2. Step 2: Convert to fraction form
    852,405.78/1,176,285.60 = 470,427.60/x
  3. Step 3: Cross multiply
    852,405.78x = 1,176,285.60 × 470,427.60
  4. Step 4: Simplify right side
    852,405.78x = 553,357,211,722.56
  5. Step 5: Solve for x
    x = 553,357,211,722.56/852,405.78
  6. Step 6: Final answer
    x = 649,171.12

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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.