Home / 499,223.13-688,928.28-272,868.63

Finding the Fourth Proportional to 499,223.13, 688,928.28 and 272,868.63

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Solution

The fourth proportional to 499,223.13, 688,928.28 and 272,868.63 is: 376,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,223.13 : 688,928.28 = 272,868.63 : x
  2. Step 2: Convert to fraction form
    499,223.13/688,928.28 = 272,868.63/x
  3. Step 3: Cross multiply
    499,223.13x = 688,928.28 × 272,868.63
  4. Step 4: Simplify right side
    499,223.13x = 187,986,915,931.86
  5. Step 5: Solve for x
    x = 187,986,915,931.86/499,223.13
  6. Step 6: Final answer
    x = 376,558.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.