Home / 852,399.78-1,176,277.32-470,421.60

Finding the Fourth Proportional to 852,399.78, 1,176,277.32 and 470,421.60

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Solution

The fourth proportional to 852,399.78, 1,176,277.32 and 470,421.60 is: 649,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,399.78 : 1,176,277.32 = 470,421.60 : x
  2. Step 2: Convert to fraction form
    852,399.78/1,176,277.32 = 470,421.60/x
  3. Step 3: Cross multiply
    852,399.78x = 1,176,277.32 × 470,421.60
  4. Step 4: Simplify right side
    852,399.78x = 553,346,258,918.11
  5. Step 5: Solve for x
    x = 553,346,258,918.11/852,399.78
  6. Step 6: Final answer
    x = 649,162.84

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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.