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Finding the Fourth Proportional to 511,379.95, 704,970.80 and 402,294.69

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Solution

The fourth proportional to 511,379.95, 704,970.80 and 402,294.69 is: 554,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,379.95 : 704,970.80 = 402,294.69 : x
  2. Step 2: Convert to fraction form
    511,379.95/704,970.80 = 402,294.69/x
  3. Step 3: Cross multiply
    511,379.95x = 704,970.80 × 402,294.69
  4. Step 4: Simplify right side
    511,379.95x = 283,606,007,433.58
  5. Step 5: Solve for x
    x = 283,606,007,433.58/511,379.95
  6. Step 6: Final answer
    x = 554,589.61

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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.