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Finding the Fourth Proportional to 1,029,964.80, 1,544,947.20 and 977,476.80

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Solution

The fourth proportional to 1,029,964.80, 1,544,947.20 and 977,476.80 is: 1,466,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,964.80 : 1,544,947.20 = 977,476.80 : x
  2. Step 2: Convert to fraction form
    1,029,964.80/1,544,947.20 = 977,476.80/x
  3. Step 3: Cross multiply
    1,029,964.80x = 1,544,947.20 × 977,476.80
  4. Step 4: Simplify right side
    1,029,964.80x = 1,510,150,045,224.96
  5. Step 5: Solve for x
    x = 1,510,150,045,224.96/1,029,964.80
  6. Step 6: Final answer
    x = 1,466,215.20

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Similar ratio
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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.