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Finding the Fourth Proportional to 692,437.52, 955,608.36 and 390,625.04

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Solution

The fourth proportional to 692,437.52, 955,608.36 and 390,625.04 is: 539,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,437.52 : 955,608.36 = 390,625.04 : x
  2. Step 2: Convert to fraction form
    692,437.52/955,608.36 = 390,625.04/x
  3. Step 3: Cross multiply
    692,437.52x = 955,608.36 × 390,625.04
  4. Step 4: Simplify right side
    692,437.52x = 373,284,553,849.33
  5. Step 5: Solve for x
    x = 373,284,553,849.33/692,437.52
  6. Step 6: Final answer
    x = 539,087.71

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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.