Home / 755,339.28-1,042,368.30-415,807.56

Finding the Fourth Proportional to 755,339.28, 1,042,368.30 and 415,807.56

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Solution

The fourth proportional to 755,339.28, 1,042,368.30 and 415,807.56 is: 573,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,339.28 : 1,042,368.30 = 415,807.56 : x
  2. Step 2: Convert to fraction form
    755,339.28/1,042,368.30 = 415,807.56/x
  3. Step 3: Cross multiply
    755,339.28x = 1,042,368.30 × 415,807.56
  4. Step 4: Simplify right side
    755,339.28x = 433,424,619,444.35
  5. Step 5: Solve for x
    x = 433,424,619,444.35/755,339.28
  6. Step 6: Final answer
    x = 573,814.48

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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.