Home / 890,429.60-1,336,681.20-576,192.80

Finding the Fourth Proportional to 890,429.60, 1,336,681.20 and 576,192.80

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Solution

The fourth proportional to 890,429.60, 1,336,681.20 and 576,192.80 is: 864,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,429.60 : 1,336,681.20 = 576,192.80 : x
  2. Step 2: Convert to fraction form
    890,429.60/1,336,681.20 = 576,192.80/x
  3. Step 3: Cross multiply
    890,429.60x = 1,336,681.20 × 576,192.80
  4. Step 4: Simplify right side
    890,429.60x = 770,186,083,335.36
  5. Step 5: Solve for x
    x = 770,186,083,335.36/890,429.60
  6. Step 6: Final answer
    x = 864,960.11

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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.