Home / 1,210,191.40-1,815,287.10-832,277.80

Finding the Fourth Proportional to 1,210,191.40, 1,815,287.10 and 832,277.80

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Solution

The fourth proportional to 1,210,191.40, 1,815,287.10 and 832,277.80 is: 1,248,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,191.40 : 1,815,287.10 = 832,277.80 : x
  2. Step 2: Convert to fraction form
    1,210,191.40/1,815,287.10 = 832,277.80/x
  3. Step 3: Cross multiply
    1,210,191.40x = 1,815,287.10 × 832,277.80
  4. Step 4: Simplify right side
    1,210,191.40x = 1,510,823,153,956.38
  5. Step 5: Solve for x
    x = 1,510,823,153,956.38/1,210,191.40
  6. Step 6: Final answer
    x = 1,248,416.70

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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.