Home / 808,070.32-1,115,144.64-445,506.88

Finding the Fourth Proportional to 808,070.32, 1,115,144.64 and 445,506.88

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Solution

The fourth proportional to 808,070.32, 1,115,144.64 and 445,506.88 is: 614,803.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,070.32 : 1,115,144.64 = 445,506.88 : x
  2. Step 2: Convert to fraction form
    808,070.32/1,115,144.64 = 445,506.88/x
  3. Step 3: Cross multiply
    808,070.32x = 1,115,144.64 × 445,506.88
  4. Step 4: Simplify right side
    808,070.32x = 496,804,609,315.12
  5. Step 5: Solve for x
    x = 496,804,609,315.12/808,070.32
  6. Step 6: Final answer
    x = 614,803.68

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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.