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Finding the Fourth Proportional to 472,418.61, 651,944.73 and 257,562.26

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Solution

The fourth proportional to 472,418.61, 651,944.73 and 257,562.26 is: 355,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,418.61 : 651,944.73 = 257,562.26 : x
  2. Step 2: Convert to fraction form
    472,418.61/651,944.73 = 257,562.26/x
  3. Step 3: Cross multiply
    472,418.61x = 651,944.73 × 257,562.26
  4. Step 4: Simplify right side
    472,418.61x = 167,916,358,053.89
  5. Step 5: Solve for x
    x = 167,916,358,053.89/472,418.61
  6. Step 6: Final answer
    x = 355,439.76

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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.