Home / 1,210,186.40-1,815,085.20-368,542.40

Finding the Fourth Proportional to 1,210,186.40, 1,815,085.20 and 368,542.40

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Solution

The fourth proportional to 1,210,186.40, 1,815,085.20 and 368,542.40 is: 552,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,186.40 : 1,815,085.20 = 368,542.40 : x
  2. Step 2: Convert to fraction form
    1,210,186.40/1,815,085.20 = 368,542.40/x
  3. Step 3: Cross multiply
    1,210,186.40x = 1,815,085.20 × 368,542.40
  4. Step 4: Simplify right side
    1,210,186.40x = 668,935,855,812.48
  5. Step 5: Solve for x
    x = 668,935,855,812.48/1,210,186.40
  6. Step 6: Final answer
    x = 552,754.40

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Double scale
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1.5x scale

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.