Home / 1,420,164.74-1,959,840.70-808,287.50

Finding the Fourth Proportional to 1,420,164.74, 1,959,840.70 and 808,287.50

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Solution

The fourth proportional to 1,420,164.74, 1,959,840.70 and 808,287.50 is: 1,115,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,164.74 : 1,959,840.70 = 808,287.50 : x
  2. Step 2: Convert to fraction form
    1,420,164.74/1,959,840.70 = 808,287.50/x
  3. Step 3: Cross multiply
    1,420,164.74x = 1,959,840.70 × 808,287.50
  4. Step 4: Simplify right side
    1,420,164.74x = 1,584,114,739,801.25
  5. Step 5: Solve for x
    x = 1,584,114,739,801.25/1,420,164.74
  6. Step 6: Final answer
    x = 1,115,444.35

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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.