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Finding the Fourth Proportional to 995,416.32, 1,492,240.32 and 388,064.64

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Solution

The fourth proportional to 995,416.32, 1,492,240.32 and 388,064.64 is: 581,752.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,416.32 : 1,492,240.32 = 388,064.64 : x
  2. Step 2: Convert to fraction form
    995,416.32/1,492,240.32 = 388,064.64/x
  3. Step 3: Cross multiply
    995,416.32x = 1,492,240.32 × 388,064.64
  4. Step 4: Simplify right side
    995,416.32x = 579,085,702,574.29
  5. Step 5: Solve for x
    x = 579,085,702,574.29/995,416.32
  6. Step 6: Final answer
    x = 581,752.27

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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.