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Finding the Fourth Proportional to 456,646.20, 630,425.12 and 275,404.20

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Solution

The fourth proportional to 456,646.20, 630,425.12 and 275,404.20 is: 380,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,646.20 : 630,425.12 = 275,404.20 : x
  2. Step 2: Convert to fraction form
    456,646.20/630,425.12 = 275,404.20/x
  3. Step 3: Cross multiply
    456,646.20x = 630,425.12 × 275,404.20
  4. Step 4: Simplify right side
    456,646.20x = 173,621,725,833.50
  5. Step 5: Solve for x
    x = 173,621,725,833.50/456,646.20
  6. Step 6: Final answer
    x = 380,210.60

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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.