Home / 669,386.16-1,004,114.32-509,712.54

Finding the Fourth Proportional to 669,386.16, 1,004,114.32 and 509,712.54

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Solution

The fourth proportional to 669,386.16, 1,004,114.32 and 509,712.54 is: 764,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,386.16 : 1,004,114.32 = 509,712.54 : x
  2. Step 2: Convert to fraction form
    669,386.16/1,004,114.32 = 509,712.54/x
  3. Step 3: Cross multiply
    669,386.16x = 1,004,114.32 × 509,712.54
  4. Step 4: Simplify right side
    669,386.16x = 511,809,660,497.57
  5. Step 5: Solve for x
    x = 511,809,660,497.57/669,386.16
  6. Step 6: Final answer
    x = 764,595.52

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Double scale
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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.