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Finding the Fourth Proportional to 542,590.68, 748,813.50 and 300,896.40

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Solution

The fourth proportional to 542,590.68, 748,813.50 and 300,896.40 is: 415,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,590.68 : 748,813.50 = 300,896.40 : x
  2. Step 2: Convert to fraction form
    542,590.68/748,813.50 = 300,896.40/x
  3. Step 3: Cross multiply
    542,590.68x = 748,813.50 × 300,896.40
  4. Step 4: Simplify right side
    542,590.68x = 225,315,286,421.40
  5. Step 5: Solve for x
    x = 225,315,286,421.40/542,590.68
  6. Step 6: Final answer
    x = 415,258.31

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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.