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Finding the Fourth Proportional to 507,840.60, 761,860.47 and 187,994.93

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Solution

The fourth proportional to 507,840.60, 761,860.47 and 187,994.93 is: 282,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,840.60 : 761,860.47 = 187,994.93 : x
  2. Step 2: Convert to fraction form
    507,840.60/761,860.47 = 187,994.93/x
  3. Step 3: Cross multiply
    507,840.60x = 761,860.47 × 187,994.93
  4. Step 4: Simplify right side
    507,840.60x = 143,225,901,918.12
  5. Step 5: Solve for x
    x = 143,225,901,918.12/507,840.60
  6. Step 6: Final answer
    x = 282,029.25

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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.