Home / 923,420.03-1,385,568.39-639,547.43

Finding the Fourth Proportional to 923,420.03, 1,385,568.39 and 639,547.43

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Solution

The fourth proportional to 923,420.03, 1,385,568.39 and 639,547.43 is: 959,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,420.03 : 1,385,568.39 = 639,547.43 : x
  2. Step 2: Convert to fraction form
    923,420.03/1,385,568.39 = 639,547.43/x
  3. Step 3: Cross multiply
    923,420.03x = 1,385,568.39 × 639,547.43
  4. Step 4: Simplify right side
    923,420.03x = 886,136,702,913.74
  5. Step 5: Solve for x
    x = 886,136,702,913.74/923,420.03
  6. Step 6: Final answer
    x = 959,624.74

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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.