Home / 1,210,558.40-1,815,643.20-368,914.40

Finding the Fourth Proportional to 1,210,558.40, 1,815,643.20 and 368,914.40

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Solution

The fourth proportional to 1,210,558.40, 1,815,643.20 and 368,914.40 is: 553,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,558.40 : 1,815,643.20 = 368,914.40 : x
  2. Step 2: Convert to fraction form
    1,210,558.40/1,815,643.20 = 368,914.40/x
  3. Step 3: Cross multiply
    1,210,558.40x = 1,815,643.20 × 368,914.40
  4. Step 4: Simplify right side
    1,210,558.40x = 669,816,921,742.08
  5. Step 5: Solve for x
    x = 669,816,921,742.08/1,210,558.40
  6. Step 6: Final answer
    x = 553,312.36

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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.