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Finding the Fourth Proportional to 678,483, 1,018,191.06 and 235,251

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Solution

The fourth proportional to 678,483, 1,018,191.06 and 235,251 is: 353,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,483 : 1,018,191.06 = 235,251 : x
  2. Step 2: Convert to fraction form
    678,483/1,018,191.06 = 235,251/x
  3. Step 3: Cross multiply
    678,483x = 1,018,191.06 × 235,251
  4. Step 4: Simplify right side
    678,483x = 239,530,465,056.06
  5. Step 5: Solve for x
    x = 239,530,465,056.06/678,483
  6. Step 6: Final answer
    x = 353,038.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.