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Finding the Fourth Proportional to 671,346.10, 926,791.50 and 442,051.30

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Solution

The fourth proportional to 671,346.10, 926,791.50 and 442,051.30 is: 610,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,346.10 : 926,791.50 = 442,051.30 : x
  2. Step 2: Convert to fraction form
    671,346.10/926,791.50 = 442,051.30/x
  3. Step 3: Cross multiply
    671,346.10x = 926,791.50 × 442,051.30
  4. Step 4: Simplify right side
    671,346.10x = 409,689,387,403.95
  5. Step 5: Solve for x
    x = 409,689,387,403.95/671,346.10
  6. Step 6: Final answer
    x = 610,250.64

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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.