Home / 913,328.73-1,260,396.10-505,458.70

Finding the Fourth Proportional to 913,328.73, 1,260,396.10 and 505,458.70

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Solution

The fourth proportional to 913,328.73, 1,260,396.10 and 505,458.70 is: 697,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,328.73 : 1,260,396.10 = 505,458.70 : x
  2. Step 2: Convert to fraction form
    913,328.73/1,260,396.10 = 505,458.70/x
  3. Step 3: Cross multiply
    913,328.73x = 1,260,396.10 × 505,458.70
  4. Step 4: Simplify right side
    913,328.73x = 637,078,167,889.09
  5. Step 5: Solve for x
    x = 637,078,167,889.09/913,328.73
  6. Step 6: Final answer
    x = 697,534.36

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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.