Home / 1,355,905.60-1,870,686.24-774,711.68

Finding the Fourth Proportional to 1,355,905.60, 1,870,686.24 and 774,711.68

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Solution

The fourth proportional to 1,355,905.60, 1,870,686.24 and 774,711.68 is: 1,068,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,905.60 : 1,870,686.24 = 774,711.68 : x
  2. Step 2: Convert to fraction form
    1,355,905.60/1,870,686.24 = 774,711.68/x
  3. Step 3: Cross multiply
    1,355,905.60x = 1,870,686.24 × 774,711.68
  4. Step 4: Simplify right side
    1,355,905.60x = 1,449,242,479,743.28
  5. Step 5: Solve for x
    x = 1,449,242,479,743.28/1,355,905.60
  6. Step 6: Final answer
    x = 1,068,837.30

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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.