Home / 921,647.99-1,271,855.99-513,725.51

Finding the Fourth Proportional to 921,647.99, 1,271,855.99 and 513,725.51

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Solution

The fourth proportional to 921,647.99, 1,271,855.99 and 513,725.51 is: 708,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,647.99 : 1,271,855.99 = 513,725.51 : x
  2. Step 2: Convert to fraction form
    921,647.99/1,271,855.99 = 513,725.51/x
  3. Step 3: Cross multiply
    921,647.99x = 1,271,855.99 × 513,725.51
  4. Step 4: Simplify right side
    921,647.99x = 653,384,871,573.26
  5. Step 5: Solve for x
    x = 653,384,871,573.26/921,647.99
  6. Step 6: Final answer
    x = 708,931.04

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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.