Home / 742,533.40-1,024,689.90-403,001.56

Finding the Fourth Proportional to 742,533.40, 1,024,689.90 and 403,001.56

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Solution

The fourth proportional to 742,533.40, 1,024,689.90 and 403,001.56 is: 556,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,533.40 : 1,024,689.90 = 403,001.56 : x
  2. Step 2: Convert to fraction form
    742,533.40/1,024,689.90 = 403,001.56/x
  3. Step 3: Cross multiply
    742,533.40x = 1,024,689.90 × 403,001.56
  4. Step 4: Simplify right side
    742,533.40x = 412,951,628,216.24
  5. Step 5: Solve for x
    x = 412,951,628,216.24/742,533.40
  6. Step 6: Final answer
    x = 556,138.79

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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.