Home / 742,465.17-1,024,601.40-420,169.41

Finding the Fourth Proportional to 742,465.17, 1,024,601.40 and 420,169.41

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Solution

The fourth proportional to 742,465.17, 1,024,601.40 and 420,169.41 is: 579,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,465.17 : 1,024,601.40 = 420,169.41 : x
  2. Step 2: Convert to fraction form
    742,465.17/1,024,601.40 = 420,169.41/x
  3. Step 3: Cross multiply
    742,465.17x = 1,024,601.40 × 420,169.41
  4. Step 4: Simplify right side
    742,465.17x = 430,506,165,723.17
  5. Step 5: Solve for x
    x = 430,506,165,723.17/742,465.17
  6. Step 6: Final answer
    x = 579,833.48

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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.