Home / 1,239,437.70-1,859,047.20-340,799.40

Finding the Fourth Proportional to 1,239,437.70, 1,859,047.20 and 340,799.40

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Solution

The fourth proportional to 1,239,437.70, 1,859,047.20 and 340,799.40 is: 511,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,437.70 : 1,859,047.20 = 340,799.40 : x
  2. Step 2: Convert to fraction form
    1,239,437.70/1,859,047.20 = 340,799.40/x
  3. Step 3: Cross multiply
    1,239,437.70x = 1,859,047.20 × 340,799.40
  4. Step 4: Simplify right side
    1,239,437.70x = 633,562,170,331.68
  5. Step 5: Solve for x
    x = 633,562,170,331.68/1,239,437.70
  6. Step 6: Final answer
    x = 511,169.03

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1.5x scale

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.