Home / 1,242,088.80-1,863,133.20-443,396.40

Finding the Fourth Proportional to 1,242,088.80, 1,863,133.20 and 443,396.40

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Solution

The fourth proportional to 1,242,088.80, 1,863,133.20 and 443,396.40 is: 665,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,088.80 : 1,863,133.20 = 443,396.40 : x
  2. Step 2: Convert to fraction form
    1,242,088.80/1,863,133.20 = 443,396.40/x
  3. Step 3: Cross multiply
    1,242,088.80x = 1,863,133.20 × 443,396.40
  4. Step 4: Simplify right side
    1,242,088.80x = 826,106,553,600.48
  5. Step 5: Solve for x
    x = 826,106,553,600.48/1,242,088.80
  6. Step 6: Final answer
    x = 665,094.60

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Double scale
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Similar ratio
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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.