Home / 828,779.76-1,240,854.84-448,340.04

Finding the Fourth Proportional to 828,779.76, 1,240,854.84 and 448,340.04

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Solution

The fourth proportional to 828,779.76, 1,240,854.84 and 448,340.04 is: 671,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,779.76 : 1,240,854.84 = 448,340.04 : x
  2. Step 2: Convert to fraction form
    828,779.76/1,240,854.84 = 448,340.04/x
  3. Step 3: Cross multiply
    828,779.76x = 1,240,854.84 × 448,340.04
  4. Step 4: Simplify right side
    828,779.76x = 556,324,908,599.79
  5. Step 5: Solve for x
    x = 556,324,908,599.79/828,779.76
  6. Step 6: Final answer
    x = 671,257.84

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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.