Home / 428,977.48-591,988.70-235,386.46

Finding the Fourth Proportional to 428,977.48, 591,988.70 and 235,386.46

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Solution

The fourth proportional to 428,977.48, 591,988.70 and 235,386.46 is: 324,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,977.48 : 591,988.70 = 235,386.46 : x
  2. Step 2: Convert to fraction form
    428,977.48/591,988.70 = 235,386.46/x
  3. Step 3: Cross multiply
    428,977.48x = 591,988.70 × 235,386.46
  4. Step 4: Simplify right side
    428,977.48x = 139,346,124,756.04
  5. Step 5: Solve for x
    x = 139,346,124,756.04/428,977.48
  6. Step 6: Final answer
    x = 324,833.19

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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.