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Finding the Fourth Proportional to 570,014.15, 786,550.37 and 328,374.95

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Solution

The fourth proportional to 570,014.15, 786,550.37 and 328,374.95 is: 453,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,014.15 : 786,550.37 = 328,374.95 : x
  2. Step 2: Convert to fraction form
    570,014.15/786,550.37 = 328,374.95/x
  3. Step 3: Cross multiply
    570,014.15x = 786,550.37 × 328,374.95
  4. Step 4: Simplify right side
    570,014.15x = 258,283,438,421.23
  5. Step 5: Solve for x
    x = 258,283,438,421.23/570,014.15
  6. Step 6: Final answer
    x = 453,117.59

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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.