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Finding the Fourth Proportional to 456,955.90, 630,618.85 and 253,006.82

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Solution

The fourth proportional to 456,955.90, 630,618.85 and 253,006.82 is: 349,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,955.90 : 630,618.85 = 253,006.82 : x
  2. Step 2: Convert to fraction form
    456,955.90/630,618.85 = 253,006.82/x
  3. Step 3: Cross multiply
    456,955.90x = 630,618.85 × 253,006.82
  4. Step 4: Simplify right side
    456,955.90x = 159,550,869,398.54
  5. Step 5: Solve for x
    x = 159,550,869,398.54/456,955.90
  6. Step 6: Final answer
    x = 349,160.32

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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.