Home / 777,287.46-1,072,642.30-423,671.32

Finding the Fourth Proportional to 777,287.46, 1,072,642.30 and 423,671.32

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Solution

The fourth proportional to 777,287.46, 1,072,642.30 and 423,671.32 is: 584,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,287.46 : 1,072,642.30 = 423,671.32 : x
  2. Step 2: Convert to fraction form
    777,287.46/1,072,642.30 = 423,671.32/x
  3. Step 3: Cross multiply
    777,287.46x = 1,072,642.30 × 423,671.32
  4. Step 4: Simplify right side
    777,287.46x = 454,447,779,128.84
  5. Step 5: Solve for x
    x = 454,447,779,128.84/777,287.46
  6. Step 6: Final answer
    x = 584,658.58

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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.