Home / 913,508.46-1,260,644.13-505,638.36

Finding the Fourth Proportional to 913,508.46, 1,260,644.13 and 505,638.36

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Solution

The fourth proportional to 913,508.46, 1,260,644.13 and 505,638.36 is: 697,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,508.46 : 1,260,644.13 = 505,638.36 : x
  2. Step 2: Convert to fraction form
    913,508.46/1,260,644.13 = 505,638.36/x
  3. Step 3: Cross multiply
    913,508.46x = 1,260,644.13 × 505,638.36
  4. Step 4: Simplify right side
    913,508.46x = 637,430,030,436.83
  5. Step 5: Solve for x
    x = 637,430,030,436.83/913,508.46
  6. Step 6: Final answer
    x = 697,782.30

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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.