Home / 921,504.94-1,271,683.07-513,633.03

Finding the Fourth Proportional to 921,504.94, 1,271,683.07 and 513,633.03

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Solution

The fourth proportional to 921,504.94, 1,271,683.07 and 513,633.03 is: 708,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,504.94 : 1,271,683.07 = 513,633.03 : x
  2. Step 2: Convert to fraction form
    921,504.94/1,271,683.07 = 513,633.03/x
  3. Step 3: Cross multiply
    921,504.94x = 1,271,683.07 × 513,633.03
  4. Step 4: Simplify right side
    921,504.94x = 653,178,428,443.80
  5. Step 5: Solve for x
    x = 653,178,428,443.80/921,504.94
  6. Step 6: Final answer
    x = 708,817.07

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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.