Home / 346,524.12-478,671.34-261,128.61

Finding the Fourth Proportional to 346,524.12, 478,671.34 and 261,128.61

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Solution

The fourth proportional to 346,524.12, 478,671.34 and 261,128.61 is: 360,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,524.12 : 478,671.34 = 261,128.61 : x
  2. Step 2: Convert to fraction form
    346,524.12/478,671.34 = 261,128.61/x
  3. Step 3: Cross multiply
    346,524.12x = 478,671.34 × 261,128.61
  4. Step 4: Simplify right side
    346,524.12x = 124,994,781,661.04
  5. Step 5: Solve for x
    x = 124,994,781,661.04/346,524.12
  6. Step 6: Final answer
    x = 360,710.19

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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.