Home / 913,282.86-1,260,311.48-505,384.43

Finding the Fourth Proportional to 913,282.86, 1,260,311.48 and 505,384.43

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Solution

The fourth proportional to 913,282.86, 1,260,311.48 and 505,384.43 is: 697,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,282.86 : 1,260,311.48 = 505,384.43 : x
  2. Step 2: Convert to fraction form
    913,282.86/1,260,311.48 = 505,384.43/x
  3. Step 3: Cross multiply
    913,282.86x = 1,260,311.48 × 505,384.43
  4. Step 4: Simplify right side
    913,282.86x = 636,941,792,008.97
  5. Step 5: Solve for x
    x = 636,941,792,008.97/913,282.86
  6. Step 6: Final answer
    x = 697,420.06

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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.