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Finding the Fourth Proportional to 456,959.78, 630,560.71 and 253,003.23

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Solution

The fourth proportional to 456,959.78, 630,560.71 and 253,003.23 is: 349,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,959.78 : 630,560.71 = 253,003.23 : x
  2. Step 2: Convert to fraction form
    456,959.78/630,560.71 = 253,003.23/x
  3. Step 3: Cross multiply
    456,959.78x = 630,560.71 × 253,003.23
  4. Step 4: Simplify right side
    456,959.78x = 159,533,896,657.35
  5. Step 5: Solve for x
    x = 159,533,896,657.35/456,959.78
  6. Step 6: Final answer
    x = 349,120.22

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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.