Home / 729,595.14-1,007,109.98-439,220.21

Finding the Fourth Proportional to 729,595.14, 1,007,109.98 and 439,220.21

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Solution

The fourth proportional to 729,595.14, 1,007,109.98 and 439,220.21 is: 606,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,595.14 : 1,007,109.98 = 439,220.21 : x
  2. Step 2: Convert to fraction form
    729,595.14/1,007,109.98 = 439,220.21/x
  3. Step 3: Cross multiply
    729,595.14x = 1,007,109.98 × 439,220.21
  4. Step 4: Simplify right side
    729,595.14x = 442,343,052,782.89
  5. Step 5: Solve for x
    x = 442,343,052,782.89/729,595.14
  6. Step 6: Final answer
    x = 606,285.64

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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.