Home / 784,006.40-1,176,009.60-740,460.80

Finding the Fourth Proportional to 784,006.40, 1,176,009.60 and 740,460.80

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Solution

The fourth proportional to 784,006.40, 1,176,009.60 and 740,460.80 is: 1,110,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,006.40 : 1,176,009.60 = 740,460.80 : x
  2. Step 2: Convert to fraction form
    784,006.40/1,176,009.60 = 740,460.80/x
  3. Step 3: Cross multiply
    784,006.40x = 1,176,009.60 × 740,460.80
  4. Step 4: Simplify right side
    784,006.40x = 870,789,009,223.68
  5. Step 5: Solve for x
    x = 870,789,009,223.68/784,006.40
  6. Step 6: Final answer
    x = 1,110,691.20

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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.