Home / 945,271.20-1,418,079.60-384,362.40

Finding the Fourth Proportional to 945,271.20, 1,418,079.60 and 384,362.40

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Solution

The fourth proportional to 945,271.20, 1,418,079.60 and 384,362.40 is: 576,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,271.20 : 1,418,079.60 = 384,362.40 : x
  2. Step 2: Convert to fraction form
    945,271.20/1,418,079.60 = 384,362.40/x
  3. Step 3: Cross multiply
    945,271.20x = 1,418,079.60 × 384,362.40
  4. Step 4: Simplify right side
    945,271.20x = 545,056,478,447.04
  5. Step 5: Solve for x
    x = 545,056,478,447.04/945,271.20
  6. Step 6: Final answer
    x = 576,613.86

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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.