Home / 476,445.24-657,515.88-285,454.53

Finding the Fourth Proportional to 476,445.24, 657,515.88 and 285,454.53

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Solution

The fourth proportional to 476,445.24, 657,515.88 and 285,454.53 is: 393,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,445.24 : 657,515.88 = 285,454.53 : x
  2. Step 2: Convert to fraction form
    476,445.24/657,515.88 = 285,454.53/x
  3. Step 3: Cross multiply
    476,445.24x = 657,515.88 × 285,454.53
  4. Step 4: Simplify right side
    476,445.24x = 187,690,886,492.94
  5. Step 5: Solve for x
    x = 187,690,886,492.94/476,445.24
  6. Step 6: Final answer
    x = 393,940.10

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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.