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Finding the Fourth Proportional to 670,455.27, 925,261.52 and 415,888.47

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Solution

The fourth proportional to 670,455.27, 925,261.52 and 415,888.47 is: 573,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,455.27 : 925,261.52 = 415,888.47 : x
  2. Step 2: Convert to fraction form
    670,455.27/925,261.52 = 415,888.47/x
  3. Step 3: Cross multiply
    670,455.27x = 925,261.52 × 415,888.47
  4. Step 4: Simplify right side
    670,455.27x = 384,805,595,823.23
  5. Step 5: Solve for x
    x = 384,805,595,823.23/670,455.27
  6. Step 6: Final answer
    x = 573,946.71

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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.