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Finding the Fourth Proportional to 403,563.60, 606,657.60 and 286,048.80

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Solution

The fourth proportional to 403,563.60, 606,657.60 and 286,048.80 is: 430,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,563.60 : 606,657.60 = 286,048.80 : x
  2. Step 2: Convert to fraction form
    403,563.60/606,657.60 = 286,048.80/x
  3. Step 3: Cross multiply
    403,563.60x = 606,657.60 × 286,048.80
  4. Step 4: Simplify right side
    403,563.60x = 173,533,678,490.88
  5. Step 5: Solve for x
    x = 173,533,678,490.88/403,563.60
  6. Step 6: Final answer
    x = 430,003.30

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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.