Home / 788,530.20-1,087,828.34-482,620.20

Finding the Fourth Proportional to 788,530.20, 1,087,828.34 and 482,620.20

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Solution

The fourth proportional to 788,530.20, 1,087,828.34 and 482,620.20 is: 665,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,530.20 : 1,087,828.34 = 482,620.20 : x
  2. Step 2: Convert to fraction form
    788,530.20/1,087,828.34 = 482,620.20/x
  3. Step 3: Cross multiply
    788,530.20x = 1,087,828.34 × 482,620.20
  4. Step 4: Simplify right side
    788,530.20x = 525,007,931,016.47
  5. Step 5: Solve for x
    x = 525,007,931,016.47/788,530.20
  6. Step 6: Final answer
    x = 665,805.74

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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.