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Finding the Fourth Proportional to 1,373,664.32, 1,895,672.40 and 761,829.20

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Solution

The fourth proportional to 1,373,664.32, 1,895,672.40 and 761,829.20 is: 1,051,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,664.32 : 1,895,672.40 = 761,829.20 : x
  2. Step 2: Convert to fraction form
    1,373,664.32/1,895,672.40 = 761,829.20/x
  3. Step 3: Cross multiply
    1,373,664.32x = 1,895,672.40 × 761,829.20
  4. Step 4: Simplify right side
    1,373,664.32x = 1,444,178,587,954.08
  5. Step 5: Solve for x
    x = 1,444,178,587,954.08/1,373,664.32
  6. Step 6: Final answer
    x = 1,051,332.97

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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.