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Finding the Fourth Proportional to 707,751.56, 977,346.26 and 449,713.50

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Solution

The fourth proportional to 707,751.56, 977,346.26 and 449,713.50 is: 621,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,751.56 : 977,346.26 = 449,713.50 : x
  2. Step 2: Convert to fraction form
    707,751.56/977,346.26 = 449,713.50/x
  3. Step 3: Cross multiply
    707,751.56x = 977,346.26 × 449,713.50
  4. Step 4: Simplify right side
    707,751.56x = 439,525,805,047.94
  5. Step 5: Solve for x
    x = 439,525,805,047.94/707,751.56
  6. Step 6: Final answer
    x = 621,017.08

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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.