Home / 1,306,468.63-1,959,702.21-407,987.36

Finding the Fourth Proportional to 1,306,468.63, 1,959,702.21 and 407,987.36

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Solution

The fourth proportional to 1,306,468.63, 1,959,702.21 and 407,987.36 is: 611,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,468.63 : 1,959,702.21 = 407,987.36 : x
  2. Step 2: Convert to fraction form
    1,306,468.63/1,959,702.21 = 407,987.36/x
  3. Step 3: Cross multiply
    1,306,468.63x = 1,959,702.21 × 407,987.36
  4. Step 4: Simplify right side
    1,306,468.63x = 799,533,740,765.23
  5. Step 5: Solve for x
    x = 799,533,740,765.23/1,306,468.63
  6. Step 6: Final answer
    x = 611,980.82

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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.