Home / 740,008.08-1,021,408.50-417,906.72

Finding the Fourth Proportional to 740,008.08, 1,021,408.50 and 417,906.72

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Solution

The fourth proportional to 740,008.08, 1,021,408.50 and 417,906.72 is: 576,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,008.08 : 1,021,408.50 = 417,906.72 : x
  2. Step 2: Convert to fraction form
    740,008.08/1,021,408.50 = 417,906.72/x
  3. Step 3: Cross multiply
    740,008.08x = 1,021,408.50 × 417,906.72
  4. Step 4: Simplify right side
    740,008.08x = 426,853,476,015.12
  5. Step 5: Solve for x
    x = 426,853,476,015.12/740,008.08
  6. Step 6: Final answer
    x = 576,822.72

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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.