Home / 720,417.18-1,080,625.77-277,081.50

Finding the Fourth Proportional to 720,417.18, 1,080,625.77 and 277,081.50

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Solution

The fourth proportional to 720,417.18, 1,080,625.77 and 277,081.50 is: 415,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,417.18 : 1,080,625.77 = 277,081.50 : x
  2. Step 2: Convert to fraction form
    720,417.18/1,080,625.77 = 277,081.50/x
  3. Step 3: Cross multiply
    720,417.18x = 1,080,625.77 × 277,081.50
  4. Step 4: Simplify right side
    720,417.18x = 299,421,409,290.26
  5. Step 5: Solve for x
    x = 299,421,409,290.26/720,417.18
  6. Step 6: Final answer
    x = 415,622.25

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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.