Home / 818,147.04-1,128,743.28-495,624.48

Finding the Fourth Proportional to 818,147.04, 1,128,743.28 and 495,624.48

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Solution

The fourth proportional to 818,147.04, 1,128,743.28 and 495,624.48 is: 683,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,147.04 : 1,128,743.28 = 495,624.48 : x
  2. Step 2: Convert to fraction form
    818,147.04/1,128,743.28 = 495,624.48/x
  3. Step 3: Cross multiply
    818,147.04x = 1,128,743.28 × 495,624.48
  4. Step 4: Simplify right side
    818,147.04x = 559,432,801,203.49
  5. Step 5: Solve for x
    x = 559,432,801,203.49/818,147.04
  6. Step 6: Final answer
    x = 683,780.27

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1.5x scale

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.