Home / 913,436.40-1,260,811.80-531,632.88

Finding the Fourth Proportional to 913,436.40, 1,260,811.80 and 531,632.88

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Solution

The fourth proportional to 913,436.40, 1,260,811.80 and 531,632.88 is: 733,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,436.40 : 1,260,811.80 = 531,632.88 : x
  2. Step 2: Convert to fraction form
    913,436.40/1,260,811.80 = 531,632.88/x
  3. Step 3: Cross multiply
    913,436.40x = 1,260,811.80 × 531,632.88
  4. Step 4: Simplify right side
    913,436.40x = 670,289,008,371.98
  5. Step 5: Solve for x
    x = 670,289,008,371.98/913,436.40
  6. Step 6: Final answer
    x = 733,810.27

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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.