Home / 742,326.44-1,024,143.08-420,033.12

Finding the Fourth Proportional to 742,326.44, 1,024,143.08 and 420,033.12

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Solution

The fourth proportional to 742,326.44, 1,024,143.08 and 420,033.12 is: 579,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,326.44 : 1,024,143.08 = 420,033.12 : x
  2. Step 2: Convert to fraction form
    742,326.44/1,024,143.08 = 420,033.12/x
  3. Step 3: Cross multiply
    742,326.44x = 1,024,143.08 × 420,033.12
  4. Step 4: Simplify right side
    742,326.44x = 430,174,013,218.81
  5. Step 5: Solve for x
    x = 430,174,013,218.81/742,326.44
  6. Step 6: Final answer
    x = 579,494.40

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Double scale
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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.