Home / 896,422.80-1,343,103.30-422,135.40

Finding the Fourth Proportional to 896,422.80, 1,343,103.30 and 422,135.40

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Solution

The fourth proportional to 896,422.80, 1,343,103.30 and 422,135.40 is: 632,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,422.80 : 1,343,103.30 = 422,135.40 : x
  2. Step 2: Convert to fraction form
    896,422.80/1,343,103.30 = 422,135.40/x
  3. Step 3: Cross multiply
    896,422.80x = 1,343,103.30 × 422,135.40
  4. Step 4: Simplify right side
    896,422.80x = 566,971,448,786.82
  5. Step 5: Solve for x
    x = 566,971,448,786.82/896,422.80
  6. Step 6: Final answer
    x = 632,482.18

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Double scale
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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.