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Finding the Fourth Proportional to 692,051.52, 955,029.44 and 390,243.52

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Solution

The fourth proportional to 692,051.52, 955,029.44 and 390,243.52 is: 538,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,051.52 : 955,029.44 = 390,243.52 : x
  2. Step 2: Convert to fraction form
    692,051.52/955,029.44 = 390,243.52/x
  3. Step 3: Cross multiply
    692,051.52x = 955,029.44 × 390,243.52
  4. Step 4: Simplify right side
    692,051.52x = 372,694,050,369.23
  5. Step 5: Solve for x
    x = 372,694,050,369.23/692,051.52
  6. Step 6: Final answer
    x = 538,535.12

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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.