Home / 848,282.40-1,271,986.20-315,529.20

Finding the Fourth Proportional to 848,282.40, 1,271,986.20 and 315,529.20

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Solution

The fourth proportional to 848,282.40, 1,271,986.20 and 315,529.20 is: 473,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,282.40 : 1,271,986.20 = 315,529.20 : x
  2. Step 2: Convert to fraction form
    848,282.40/1,271,986.20 = 315,529.20/x
  3. Step 3: Cross multiply
    848,282.40x = 1,271,986.20 × 315,529.20
  4. Step 4: Simplify right side
    848,282.40x = 401,348,788,097.04
  5. Step 5: Solve for x
    x = 401,348,788,097.04/848,282.40
  6. Step 6: Final answer
    x = 473,131.10

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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.