Home / 898,383.80-1,347,575.70-645,129.20

Finding the Fourth Proportional to 898,383.80, 1,347,575.70 and 645,129.20

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Solution

The fourth proportional to 898,383.80, 1,347,575.70 and 645,129.20 is: 967,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,383.80 : 1,347,575.70 = 645,129.20 : x
  2. Step 2: Convert to fraction form
    898,383.80/1,347,575.70 = 645,129.20/x
  3. Step 3: Cross multiply
    898,383.80x = 1,347,575.70 × 645,129.20
  4. Step 4: Simplify right side
    898,383.80x = 869,360,433,280.44
  5. Step 5: Solve for x
    x = 869,360,433,280.44/898,383.80
  6. Step 6: Final answer
    x = 967,693.80

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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.