Home / 1,210,189.40-1,815,089.70-368,545.40

Finding the Fourth Proportional to 1,210,189.40, 1,815,089.70 and 368,545.40

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Solution

The fourth proportional to 1,210,189.40, 1,815,089.70 and 368,545.40 is: 552,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,189.40 : 1,815,089.70 = 368,545.40 : x
  2. Step 2: Convert to fraction form
    1,210,189.40/1,815,089.70 = 368,545.40/x
  3. Step 3: Cross multiply
    1,210,189.40x = 1,815,089.70 × 368,545.40
  4. Step 4: Simplify right side
    1,210,189.40x = 668,942,959,522.38
  5. Step 5: Solve for x
    x = 668,942,959,522.38/1,210,189.40
  6. Step 6: Final answer
    x = 552,758.90

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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.