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Finding the Fourth Proportional to 704,977.86, 972,886.77 and 382,687.23

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Solution

The fourth proportional to 704,977.86, 972,886.77 and 382,687.23 is: 528,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,977.86 : 972,886.77 = 382,687.23 : x
  2. Step 2: Convert to fraction form
    704,977.86/972,886.77 = 382,687.23/x
  3. Step 3: Cross multiply
    704,977.86x = 972,886.77 × 382,687.23
  4. Step 4: Simplify right side
    704,977.86x = 372,311,343,114.95
  5. Step 5: Solve for x
    x = 372,311,343,114.95/704,977.86
  6. Step 6: Final answer
    x = 528,117.78

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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.