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Finding the Fourth Proportional to 839,650, 1,158,699.78 and 457,673.44

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Solution

The fourth proportional to 839,650, 1,158,699.78 and 457,673.44 is: 631,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,650 : 1,158,699.78 = 457,673.44 : x
  2. Step 2: Convert to fraction form
    839,650/1,158,699.78 = 457,673.44/x
  3. Step 3: Cross multiply
    839,650x = 1,158,699.78 × 457,673.44
  4. Step 4: Simplify right side
    839,650x = 530,306,114,239.84
  5. Step 5: Solve for x
    x = 530,306,114,239.84/839,650
  6. Step 6: Final answer
    x = 631,579.96

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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.