Home / 742,462.47-1,024,613.55-420,172.52

Finding the Fourth Proportional to 742,462.47, 1,024,613.55 and 420,172.52

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Solution

The fourth proportional to 742,462.47, 1,024,613.55 and 420,172.52 is: 579,846.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,462.47 : 1,024,613.55 = 420,172.52 : x
  2. Step 2: Convert to fraction form
    742,462.47/1,024,613.55 = 420,172.52/x
  3. Step 3: Cross multiply
    742,462.47x = 1,024,613.55 × 420,172.52
  4. Step 4: Simplify right side
    742,462.47x = 430,514,452,206.58
  5. Step 5: Solve for x
    x = 430,514,452,206.58/742,462.47
  6. Step 6: Final answer
    x = 579,846.75

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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.