Home / 1,432,612.79-2,148,179.70-421,603.47

Finding the Fourth Proportional to 1,432,612.79, 2,148,179.70 and 421,603.47

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Solution

The fourth proportional to 1,432,612.79, 2,148,179.70 and 421,603.47 is: 632,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,612.79 : 2,148,179.70 = 421,603.47 : x
  2. Step 2: Convert to fraction form
    1,432,612.79/2,148,179.70 = 421,603.47/x
  3. Step 3: Cross multiply
    1,432,612.79x = 2,148,179.70 × 421,603.47
  4. Step 4: Simplify right side
    1,432,612.79x = 905,680,017,284.57
  5. Step 5: Solve for x
    x = 905,680,017,284.57/1,432,612.79
  6. Step 6: Final answer
    x = 632,187.58

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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.