Home / 631,154.47-946,740.07-210,430.48

Finding the Fourth Proportional to 631,154.47, 946,740.07 and 210,430.48

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Solution

The fourth proportional to 631,154.47, 946,740.07 and 210,430.48 is: 315,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,154.47 : 946,740.07 = 210,430.48 : x
  2. Step 2: Convert to fraction form
    631,154.47/946,740.07 = 210,430.48/x
  3. Step 3: Cross multiply
    631,154.47x = 946,740.07 × 210,430.48
  4. Step 4: Simplify right side
    631,154.47x = 199,222,967,365.33
  5. Step 5: Solve for x
    x = 199,222,967,365.33/631,154.47
  6. Step 6: Final answer
    x = 315,648.51

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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.