Home / 386,532.18-579,852.93-120,319.59

Finding the Fourth Proportional to 386,532.18, 579,852.93 and 120,319.59

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Solution

The fourth proportional to 386,532.18, 579,852.93 and 120,319.59 is: 180,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,532.18 : 579,852.93 = 120,319.59 : x
  2. Step 2: Convert to fraction form
    386,532.18/579,852.93 = 120,319.59/x
  3. Step 3: Cross multiply
    386,532.18x = 579,852.93 × 120,319.59
  4. Step 4: Simplify right side
    386,532.18x = 69,767,666,797.90
  5. Step 5: Solve for x
    x = 69,767,666,797.90/386,532.18
  6. Step 6: Final answer
    x = 180,496.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.