Home / 631,968.40-872,126.76-377,341.84

Finding the Fourth Proportional to 631,968.40, 872,126.76 and 377,341.84

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Solution

The fourth proportional to 631,968.40, 872,126.76 and 377,341.84 is: 520,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,968.40 : 872,126.76 = 377,341.84 : x
  2. Step 2: Convert to fraction form
    631,968.40/872,126.76 = 377,341.84/x
  3. Step 3: Cross multiply
    631,968.40x = 872,126.76 × 377,341.84
  4. Step 4: Simplify right side
    631,968.40x = 329,089,916,331.64
  5. Step 5: Solve for x
    x = 329,089,916,331.64/631,968.40
  6. Step 6: Final answer
    x = 520,737.93

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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.