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Finding the Fourth Proportional to 570,613.15, 788,266.36 and 455,740.98

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Solution

The fourth proportional to 570,613.15, 788,266.36 and 455,740.98 is: 629,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,613.15 : 788,266.36 = 455,740.98 : x
  2. Step 2: Convert to fraction form
    570,613.15/788,266.36 = 455,740.98/x
  3. Step 3: Cross multiply
    570,613.15x = 788,266.36 × 455,740.98
  4. Step 4: Simplify right side
    570,613.15x = 359,245,283,407.43
  5. Step 5: Solve for x
    x = 359,245,283,407.43/570,613.15
  6. Step 6: Final answer
    x = 629,577.65

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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.