Home / 818,399.08-1,129,394.10-478,801.72

Finding the Fourth Proportional to 818,399.08, 1,129,394.10 and 478,801.72

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Solution

The fourth proportional to 818,399.08, 1,129,394.10 and 478,801.72 is: 660,748.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,399.08 : 1,129,394.10 = 478,801.72 : x
  2. Step 2: Convert to fraction form
    818,399.08/1,129,394.10 = 478,801.72/x
  3. Step 3: Cross multiply
    818,399.08x = 1,129,394.10 × 478,801.72
  4. Step 4: Simplify right side
    818,399.08x = 540,755,837,637.85
  5. Step 5: Solve for x
    x = 540,755,837,637.85/818,399.08
  6. Step 6: Final answer
    x = 660,748.34

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