Home / 742,995.32-1,025,330.82-420,673.64

Finding the Fourth Proportional to 742,995.32, 1,025,330.82 and 420,673.64

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Solution

The fourth proportional to 742,995.32, 1,025,330.82 and 420,673.64 is: 580,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,995.32 : 1,025,330.82 = 420,673.64 : x
  2. Step 2: Convert to fraction form
    742,995.32/1,025,330.82 = 420,673.64/x
  3. Step 3: Cross multiply
    742,995.32x = 1,025,330.82 × 420,673.64
  4. Step 4: Simplify right side
    742,995.32x = 431,329,648,253.59
  5. Step 5: Solve for x
    x = 431,329,648,253.59/742,995.32
  6. Step 6: Final answer
    x = 580,528.08

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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.