Home / 913,436.34-1,260,532.86-505,538.97

Finding the Fourth Proportional to 913,436.34, 1,260,532.86 and 505,538.97

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Solution

The fourth proportional to 913,436.34, 1,260,532.86 and 505,538.97 is: 697,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,436.34 : 1,260,532.86 = 505,538.97 : x
  2. Step 2: Convert to fraction form
    913,436.34/1,260,532.86 = 505,538.97/x
  3. Step 3: Cross multiply
    913,436.34x = 1,260,532.86 × 505,538.97
  4. Step 4: Simplify right side
    913,436.34x = 637,248,483,695.55
  5. Step 5: Solve for x
    x = 637,248,483,695.55/913,436.34
  6. Step 6: Final answer
    x = 697,638.64

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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.