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Finding the Fourth Proportional to 1,170,415, 1,615,172.70 and 633,871

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Solution

The fourth proportional to 1,170,415, 1,615,172.70 and 633,871 is: 874,741.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,415 : 1,615,172.70 = 633,871 : x
  2. Step 2: Convert to fraction form
    1,170,415/1,615,172.70 = 633,871/x
  3. Step 3: Cross multiply
    1,170,415x = 1,615,172.70 × 633,871
  4. Step 4: Simplify right side
    1,170,415x = 1,023,811,134,521.70
  5. Step 5: Solve for x
    x = 1,023,811,134,521.70/1,170,415
  6. Step 6: Final answer
    x = 874,741.98

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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.