Home / 913,315.78-1,260,344.82-505,434.88

Finding the Fourth Proportional to 913,315.78, 1,260,344.82 and 505,434.88

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Solution

The fourth proportional to 913,315.78, 1,260,344.82 and 505,434.88 is: 697,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,315.78 : 1,260,344.82 = 505,434.88 : x
  2. Step 2: Convert to fraction form
    913,315.78/1,260,344.82 = 505,434.88/x
  3. Step 3: Cross multiply
    913,315.78x = 1,260,344.82 × 505,434.88
  4. Step 4: Simplify right side
    913,315.78x = 637,022,232,855.32
  5. Step 5: Solve for x
    x = 637,022,232,855.32/913,315.78
  6. Step 6: Final answer
    x = 697,483.00

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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.