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Finding the Fourth Proportional to 507,208.80, 700,677.24 and 405,100.20

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Solution

The fourth proportional to 507,208.80, 700,677.24 and 405,100.20 is: 559,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,208.80 : 700,677.24 = 405,100.20 : x
  2. Step 2: Convert to fraction form
    507,208.80/700,677.24 = 405,100.20/x
  3. Step 3: Cross multiply
    507,208.80x = 700,677.24 × 405,100.20
  4. Step 4: Simplify right side
    507,208.80x = 283,844,490,059.45
  5. Step 5: Solve for x
    x = 283,844,490,059.45/507,208.80
  6. Step 6: Final answer
    x = 559,620.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.