Home / 397,895.79-549,589.46-288,826.16

Finding the Fourth Proportional to 397,895.79, 549,589.46 and 288,826.16

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Solution

The fourth proportional to 397,895.79, 549,589.46 and 288,826.16 is: 398,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,895.79 : 549,589.46 = 288,826.16 : x
  2. Step 2: Convert to fraction form
    397,895.79/549,589.46 = 288,826.16/x
  3. Step 3: Cross multiply
    397,895.79x = 549,589.46 × 288,826.16
  4. Step 4: Simplify right side
    397,895.79x = 158,735,809,116.20
  5. Step 5: Solve for x
    x = 158,735,809,116.20/397,895.79
  6. Step 6: Final answer
    x = 398,938.14

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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.