Home / 720,927.80-1,081,499.21-265,484.01

Finding the Fourth Proportional to 720,927.80, 1,081,499.21 and 265,484.01

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Solution

The fourth proportional to 720,927.80, 1,081,499.21 and 265,484.01 is: 398,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,927.80 : 1,081,499.21 = 265,484.01 : x
  2. Step 2: Convert to fraction form
    720,927.80/1,081,499.21 = 265,484.01/x
  3. Step 3: Cross multiply
    720,927.80x = 1,081,499.21 × 265,484.01
  4. Step 4: Simplify right side
    720,927.80x = 287,120,746,216.31
  5. Step 5: Solve for x
    x = 287,120,746,216.31/720,927.80
  6. Step 6: Final answer
    x = 398,265.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.