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Finding the Fourth Proportional to 576,021.60, 864,032.40 and 426,722.40

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Solution

The fourth proportional to 576,021.60, 864,032.40 and 426,722.40 is: 640,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,021.60 : 864,032.40 = 426,722.40 : x
  2. Step 2: Convert to fraction form
    576,021.60/864,032.40 = 426,722.40/x
  3. Step 3: Cross multiply
    576,021.60x = 864,032.40 × 426,722.40
  4. Step 4: Simplify right side
    576,021.60x = 368,701,979,405.76
  5. Step 5: Solve for x
    x = 368,701,979,405.76/576,021.60
  6. Step 6: Final answer
    x = 640,083.60

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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.