Home / 788,399.20-1,088,030.40-482,379.76

Finding the Fourth Proportional to 788,399.20, 1,088,030.40 and 482,379.76

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Solution

The fourth proportional to 788,399.20, 1,088,030.40 and 482,379.76 is: 665,708.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,399.20 : 1,088,030.40 = 482,379.76 : x
  2. Step 2: Convert to fraction form
    788,399.20/1,088,030.40 = 482,379.76/x
  3. Step 3: Cross multiply
    788,399.20x = 1,088,030.40 × 482,379.76
  4. Step 4: Simplify right side
    788,399.20x = 524,843,843,224.70
  5. Step 5: Solve for x
    x = 524,843,843,224.70/788,399.20
  6. Step 6: Final answer
    x = 665,708.24

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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.