Home / 428,265.28-590,445.52-368,478.24

Finding the Fourth Proportional to 428,265.28, 590,445.52 and 368,478.24

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Solution

The fourth proportional to 428,265.28, 590,445.52 and 368,478.24 is: 508,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,265.28 : 590,445.52 = 368,478.24 : x
  2. Step 2: Convert to fraction form
    428,265.28/590,445.52 = 368,478.24/x
  3. Step 3: Cross multiply
    428,265.28x = 590,445.52 × 368,478.24
  4. Step 4: Simplify right side
    428,265.28x = 217,566,326,025.49
  5. Step 5: Solve for x
    x = 217,566,326,025.49/428,265.28
  6. Step 6: Final answer
    x = 508,017.66

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1.5x scale

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.