Home / 788,260.71-1,087,800.98-448,728.96

Finding the Fourth Proportional to 788,260.71, 1,087,800.98 and 448,728.96

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Solution

The fourth proportional to 788,260.71, 1,087,800.98 and 448,728.96 is: 619,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,260.71 : 1,087,800.98 = 448,728.96 : x
  2. Step 2: Convert to fraction form
    788,260.71/1,087,800.98 = 448,728.96/x
  3. Step 3: Cross multiply
    788,260.71x = 1,087,800.98 × 448,728.96
  4. Step 4: Simplify right side
    788,260.71x = 488,127,800,198.74
  5. Step 5: Solve for x
    x = 488,127,800,198.74/788,260.71
  6. Step 6: Final answer
    x = 619,246.65

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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.