Home / 927,035.84-1,390,223.28-421,173.02

Finding the Fourth Proportional to 927,035.84, 1,390,223.28 and 421,173.02

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Solution

The fourth proportional to 927,035.84, 1,390,223.28 and 421,173.02 is: 631,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,035.84 : 1,390,223.28 = 421,173.02 : x
  2. Step 2: Convert to fraction form
    927,035.84/1,390,223.28 = 421,173.02/x
  3. Step 3: Cross multiply
    927,035.84x = 1,390,223.28 × 421,173.02
  4. Step 4: Simplify right side
    927,035.84x = 585,524,537,311.91
  5. Step 5: Solve for x
    x = 585,524,537,311.91/927,035.84
  6. Step 6: Final answer
    x = 631,609.39

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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.