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Finding the Fourth Proportional to 742,676.88, 1,024,607 and 420,313.04

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Solution

The fourth proportional to 742,676.88, 1,024,607 and 420,313.04 is: 579,869.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,676.88 : 1,024,607 = 420,313.04 : x
  2. Step 2: Convert to fraction form
    742,676.88/1,024,607 = 420,313.04/x
  3. Step 3: Cross multiply
    742,676.88x = 1,024,607 × 420,313.04
  4. Step 4: Simplify right side
    742,676.88x = 430,655,682,975.28
  5. Step 5: Solve for x
    x = 430,655,682,975.28/742,676.88
  6. Step 6: Final answer
    x = 579,869.52

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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.