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Finding the Fourth Proportional to 556,625.12, 767,667.97 and 427,875.52

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Solution

The fourth proportional to 556,625.12, 767,667.97 and 427,875.52 is: 590,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,625.12 : 767,667.97 = 427,875.52 : x
  2. Step 2: Convert to fraction form
    556,625.12/767,667.97 = 427,875.52/x
  3. Step 3: Cross multiply
    556,625.12x = 767,667.97 × 427,875.52
  4. Step 4: Simplify right side
    556,625.12x = 328,466,335,268.61
  5. Step 5: Solve for x
    x = 328,466,335,268.61/556,625.12
  6. Step 6: Final answer
    x = 590,103.32

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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.