Home / 1,245,953.20-1,868,929.80-847,372.45

Finding the Fourth Proportional to 1,245,953.20, 1,868,929.80 and 847,372.45

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Solution

The fourth proportional to 1,245,953.20, 1,868,929.80 and 847,372.45 is: 1,271,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,953.20 : 1,868,929.80 = 847,372.45 : x
  2. Step 2: Convert to fraction form
    1,245,953.20/1,868,929.80 = 847,372.45/x
  3. Step 3: Cross multiply
    1,245,953.20x = 1,868,929.80 × 847,372.45
  4. Step 4: Simplify right side
    1,245,953.20x = 1,583,679,623,504.01
  5. Step 5: Solve for x
    x = 1,583,679,623,504.01/1,245,953.20
  6. Step 6: Final answer
    x = 1,271,058.68

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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.