Home / 1,137,141.60-1,705,251.60-388,802.40

Finding the Fourth Proportional to 1,137,141.60, 1,705,251.60 and 388,802.40

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Solution

The fourth proportional to 1,137,141.60, 1,705,251.60 and 388,802.40 is: 583,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,141.60 : 1,705,251.60 = 388,802.40 : x
  2. Step 2: Convert to fraction form
    1,137,141.60/1,705,251.60 = 388,802.40/x
  3. Step 3: Cross multiply
    1,137,141.60x = 1,705,251.60 × 388,802.40
  4. Step 4: Simplify right side
    1,137,141.60x = 663,005,914,683.84
  5. Step 5: Solve for x
    x = 663,005,914,683.84/1,137,141.60
  6. Step 6: Final answer
    x = 583,046.05

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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.