Home / 417,461.72-575,741.48-320,899.28

Finding the Fourth Proportional to 417,461.72, 575,741.48 and 320,899.28

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Solution

The fourth proportional to 417,461.72, 575,741.48 and 320,899.28 is: 442,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,461.72 : 575,741.48 = 320,899.28 : x
  2. Step 2: Convert to fraction form
    417,461.72/575,741.48 = 320,899.28/x
  3. Step 3: Cross multiply
    417,461.72x = 575,741.48 × 320,899.28
  4. Step 4: Simplify right side
    417,461.72x = 184,755,021,914.93
  5. Step 5: Solve for x
    x = 184,755,021,914.93/417,461.72
  6. Step 6: Final answer
    x = 442,567.58

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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.