Home / 693,128.03-1,039,247.03-288,600.45

Finding the Fourth Proportional to 693,128.03, 1,039,247.03 and 288,600.45

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Solution

The fourth proportional to 693,128.03, 1,039,247.03 and 288,600.45 is: 432,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,128.03 : 1,039,247.03 = 288,600.45 : x
  2. Step 2: Convert to fraction form
    693,128.03/1,039,247.03 = 288,600.45/x
  3. Step 3: Cross multiply
    693,128.03x = 1,039,247.03 × 288,600.45
  4. Step 4: Simplify right side
    693,128.03x = 299,927,159,076.16
  5. Step 5: Solve for x
    x = 299,927,159,076.16/693,128.03
  6. Step 6: Final answer
    x = 432,715.38

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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.