Home / 855,438.76-1,282,574.94-433,901.80

Finding the Fourth Proportional to 855,438.76, 1,282,574.94 and 433,901.80

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Solution

The fourth proportional to 855,438.76, 1,282,574.94 and 433,901.80 is: 650,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,438.76 : 1,282,574.94 = 433,901.80 : x
  2. Step 2: Convert to fraction form
    855,438.76/1,282,574.94 = 433,901.80/x
  3. Step 3: Cross multiply
    855,438.76x = 1,282,574.94 × 433,901.80
  4. Step 4: Simplify right side
    855,438.76x = 556,511,575,100.89
  5. Step 5: Solve for x
    x = 556,511,575,100.89/855,438.76
  6. Step 6: Final answer
    x = 650,556.89

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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.