Home / 848,280.40-1,271,983.20-315,527.20

Finding the Fourth Proportional to 848,280.40, 1,271,983.20 and 315,527.20

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Solution

The fourth proportional to 848,280.40, 1,271,983.20 and 315,527.20 is: 473,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,280.40 : 1,271,983.20 = 315,527.20 : x
  2. Step 2: Convert to fraction form
    848,280.40/1,271,983.20 = 315,527.20/x
  3. Step 3: Cross multiply
    848,280.40x = 1,271,983.20 × 315,527.20
  4. Step 4: Simplify right side
    848,280.40x = 401,345,297,543.04
  5. Step 5: Solve for x
    x = 401,345,297,543.04/848,280.40
  6. Step 6: Final answer
    x = 473,128.10

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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.