Home / 856,641.24-1,284,057.63-287,482.68

Finding the Fourth Proportional to 856,641.24, 1,284,057.63 and 287,482.68

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Solution

The fourth proportional to 856,641.24, 1,284,057.63 and 287,482.68 is: 430,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,641.24 : 1,284,057.63 = 287,482.68 : x
  2. Step 2: Convert to fraction form
    856,641.24/1,284,057.63 = 287,482.68/x
  3. Step 3: Cross multiply
    856,641.24x = 1,284,057.63 × 287,482.68
  4. Step 4: Simplify right side
    856,641.24x = 369,144,328,746.85
  5. Step 5: Solve for x
    x = 369,144,328,746.85/856,641.24
  6. Step 6: Final answer
    x = 430,920.57

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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.