Home / 1,288,740.48-1,778,601.60-779,723.52

Finding the Fourth Proportional to 1,288,740.48, 1,778,601.60 and 779,723.52

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Solution

The fourth proportional to 1,288,740.48, 1,778,601.60 and 779,723.52 is: 1,076,103.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,740.48 : 1,778,601.60 = 779,723.52 : x
  2. Step 2: Convert to fraction form
    1,288,740.48/1,778,601.60 = 779,723.52/x
  3. Step 3: Cross multiply
    1,288,740.48x = 1,778,601.60 × 779,723.52
  4. Step 4: Simplify right side
    1,288,740.48x = 1,386,817,500,229.63
  5. Step 5: Solve for x
    x = 1,386,817,500,229.63/1,288,740.48
  6. Step 6: Final answer
    x = 1,076,103.00

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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.