Home / 438,037.15-604,620.55-256,788.31

Finding the Fourth Proportional to 438,037.15, 604,620.55 and 256,788.31

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Solution

The fourth proportional to 438,037.15, 604,620.55 and 256,788.31 is: 354,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,037.15 : 604,620.55 = 256,788.31 : x
  2. Step 2: Convert to fraction form
    438,037.15/604,620.55 = 256,788.31/x
  3. Step 3: Cross multiply
    438,037.15x = 604,620.55 × 256,788.31
  4. Step 4: Simplify right side
    438,037.15x = 155,259,489,225.77
  5. Step 5: Solve for x
    x = 155,259,489,225.77/438,037.15
  6. Step 6: Final answer
    x = 354,443.66

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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.