Home / 1,139,939.48-1,573,029.78-630,630.92

Finding the Fourth Proportional to 1,139,939.48, 1,573,029.78 and 630,630.92

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Solution

The fourth proportional to 1,139,939.48, 1,573,029.78 and 630,630.92 is: 870,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,939.48 : 1,573,029.78 = 630,630.92 : x
  2. Step 2: Convert to fraction form
    1,139,939.48/1,573,029.78 = 630,630.92/x
  3. Step 3: Cross multiply
    1,139,939.48x = 1,573,029.78 × 630,630.92
  4. Step 4: Simplify right side
    1,139,939.48x = 992,001,217,348.80
  5. Step 5: Solve for x
    x = 992,001,217,348.80/1,139,939.48
  6. Step 6: Final answer
    x = 870,222.70

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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.