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Finding the Fourth Proportional to 671,663.42, 926,595.65 and 453,801.77

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Solution

The fourth proportional to 671,663.42, 926,595.65 and 453,801.77 is: 626,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,663.42 : 926,595.65 = 453,801.77 : x
  2. Step 2: Convert to fraction form
    671,663.42/926,595.65 = 453,801.77/x
  3. Step 3: Cross multiply
    671,663.42x = 926,595.65 × 453,801.77
  4. Step 4: Simplify right side
    671,663.42x = 420,490,739,142.31
  5. Step 5: Solve for x
    x = 420,490,739,142.31/671,663.42
  6. Step 6: Final answer
    x = 626,043.83

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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.