Home / 824,979.30-1,236,484.80-740,342.40

Finding the Fourth Proportional to 824,979.30, 1,236,484.80 and 740,342.40

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Solution

The fourth proportional to 824,979.30, 1,236,484.80 and 740,342.40 is: 1,109,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,979.30 : 1,236,484.80 = 740,342.40 : x
  2. Step 2: Convert to fraction form
    824,979.30/1,236,484.80 = 740,342.40/x
  3. Step 3: Cross multiply
    824,979.30x = 1,236,484.80 × 740,342.40
  4. Step 4: Simplify right side
    824,979.30x = 915,422,124,395.52
  5. Step 5: Solve for x
    x = 915,422,124,395.52/824,979.30
  6. Step 6: Final answer
    x = 1,109,630.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.