Home / 913,323.32-1,260,373.72-505,400.31

Finding the Fourth Proportional to 913,323.32, 1,260,373.72 and 505,400.31

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Solution

The fourth proportional to 913,323.32, 1,260,373.72 and 505,400.31 is: 697,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,323.32 : 1,260,373.72 = 505,400.31 : x
  2. Step 2: Convert to fraction form
    913,323.32/1,260,373.72 = 505,400.31/x
  3. Step 3: Cross multiply
    913,323.32x = 1,260,373.72 × 505,400.31
  4. Step 4: Simplify right side
    913,323.32x = 636,993,268,803.85
  5. Step 5: Solve for x
    x = 636,993,268,803.85/913,323.32
  6. Step 6: Final answer
    x = 697,445.53

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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.