Home / 921,940.08-1,271,431.80-631,973.04

Finding the Fourth Proportional to 921,940.08, 1,271,431.80 and 631,973.04

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Solution

The fourth proportional to 921,940.08, 1,271,431.80 and 631,973.04 is: 871,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,940.08 : 1,271,431.80 = 631,973.04 : x
  2. Step 2: Convert to fraction form
    921,940.08/1,271,431.80 = 631,973.04/x
  3. Step 3: Cross multiply
    921,940.08x = 1,271,431.80 × 631,973.04
  4. Step 4: Simplify right side
    921,940.08x = 803,510,619,798.67
  5. Step 5: Solve for x
    x = 803,510,619,798.67/921,940.08
  6. Step 6: Final answer
    x = 871,543.21

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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.