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Finding the Fourth Proportional to 3,018,313.80, 4,526,978.40 and 887,899.68

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Solution

The fourth proportional to 3,018,313.80, 4,526,978.40 and 887,899.68 is: 1,331,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018,313.80 : 4,526,978.40 = 887,899.68 : x
  2. Step 2: Convert to fraction form
    3,018,313.80/4,526,978.40 = 887,899.68/x
  3. Step 3: Cross multiply
    3,018,313.80x = 4,526,978.40 × 887,899.68
  4. Step 4: Simplify right side
    3,018,313.80x = 4,019,502,672,726.91
  5. Step 5: Solve for x
    x = 4,019,502,672,726.91/3,018,313.80
  6. Step 6: Final answer
    x = 1,331,704.70

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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.