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Finding the Fourth Proportional to 613,824.48, 847,079.55 and 355,751.55

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Solution

The fourth proportional to 613,824.48, 847,079.55 and 355,751.55 is: 490,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,824.48 : 847,079.55 = 355,751.55 : x
  2. Step 2: Convert to fraction form
    613,824.48/847,079.55 = 355,751.55/x
  3. Step 3: Cross multiply
    613,824.48x = 847,079.55 × 355,751.55
  4. Step 4: Simplify right side
    613,824.48x = 301,349,862,885.80
  5. Step 5: Solve for x
    x = 301,349,862,885.80/613,824.48
  6. Step 6: Final answer
    x = 490,938.16

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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.