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Finding the Fourth Proportional to 507,828.60, 761,937.30 and 499,858.20

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Solution

The fourth proportional to 507,828.60, 761,937.30 and 499,858.20 is: 749,978.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,828.60 : 761,937.30 = 499,858.20 : x
  2. Step 2: Convert to fraction form
    507,828.60/761,937.30 = 499,858.20/x
  3. Step 3: Cross multiply
    507,828.60x = 761,937.30 × 499,858.20
  4. Step 4: Simplify right side
    507,828.60x = 380,860,607,290.86
  5. Step 5: Solve for x
    x = 380,860,607,290.86/507,828.60
  6. Step 6: Final answer
    x = 749,978.65

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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.