Home / 1,432,547.76-2,148,588.03-421,433.34

Finding the Fourth Proportional to 1,432,547.76, 2,148,588.03 and 421,433.34

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Solution

The fourth proportional to 1,432,547.76, 2,148,588.03 and 421,433.34 is: 632,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,547.76 : 2,148,588.03 = 421,433.34 : x
  2. Step 2: Convert to fraction form
    1,432,547.76/2,148,588.03 = 421,433.34/x
  3. Step 3: Cross multiply
    1,432,547.76x = 2,148,588.03 × 421,433.34
  4. Step 4: Simplify right side
    1,432,547.76x = 905,486,629,766.92
  5. Step 5: Solve for x
    x = 905,486,629,766.92/1,432,547.76
  6. Step 6: Final answer
    x = 632,081.29

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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.