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Finding the Fourth Proportional to 648,777, 895,337.58 and 358,403.55

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Solution

The fourth proportional to 648,777, 895,337.58 and 358,403.55 is: 494,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,777 : 895,337.58 = 358,403.55 : x
  2. Step 2: Convert to fraction form
    648,777/895,337.58 = 358,403.55/x
  3. Step 3: Cross multiply
    648,777x = 895,337.58 × 358,403.55
  4. Step 4: Simplify right side
    648,777x = 320,892,167,120.41
  5. Step 5: Solve for x
    x = 320,892,167,120.41/648,777
  6. Step 6: Final answer
    x = 494,610.89

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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.