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Finding the Fourth Proportional to 570,798.69, 788,231.67 and 427,309.62

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Solution

The fourth proportional to 570,798.69, 788,231.67 and 427,309.62 is: 590,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,798.69 : 788,231.67 = 427,309.62 : x
  2. Step 2: Convert to fraction form
    570,798.69/788,231.67 = 427,309.62/x
  3. Step 3: Cross multiply
    570,798.69x = 788,231.67 × 427,309.62
  4. Step 4: Simplify right side
    570,798.69x = 336,818,975,379.67
  5. Step 5: Solve for x
    x = 336,818,975,379.67/570,798.69
  6. Step 6: Final answer
    x = 590,083.65

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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.