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Finding the Fourth Proportional to 507,825.69, 700,799.55 and 281,471.19

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Solution

The fourth proportional to 507,825.69, 700,799.55 and 281,471.19 is: 388,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,825.69 : 700,799.55 = 281,471.19 : x
  2. Step 2: Convert to fraction form
    507,825.69/700,799.55 = 281,471.19/x
  3. Step 3: Cross multiply
    507,825.69x = 700,799.55 × 281,471.19
  4. Step 4: Simplify right side
    507,825.69x = 197,254,883,289.97
  5. Step 5: Solve for x
    x = 197,254,883,289.97/507,825.69
  6. Step 6: Final answer
    x = 388,430.30

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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.