Home / 423,032-634,485.54-123,432.17

Finding the Fourth Proportional to 423,032, 634,485.54 and 123,432.17

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Solution

The fourth proportional to 423,032, 634,485.54 and 123,432.17 is: 185,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,032 : 634,485.54 = 123,432.17 : x
  2. Step 2: Convert to fraction form
    423,032/634,485.54 = 123,432.17/x
  3. Step 3: Cross multiply
    423,032x = 634,485.54 × 123,432.17
  4. Step 4: Simplify right side
    423,032x = 78,315,927,035.82
  5. Step 5: Solve for x
    x = 78,315,927,035.82/423,032
  6. Step 6: Final answer
    x = 185,130.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.