Home / 1,931,410.60-2,897,115.90-1,212,908.20

Finding the Fourth Proportional to 1,931,410.60, 2,897,115.90 and 1,212,908.20

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Solution

The fourth proportional to 1,931,410.60, 2,897,115.90 and 1,212,908.20 is: 1,819,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,410.60 : 2,897,115.90 = 1,212,908.20 : x
  2. Step 2: Convert to fraction form
    1,931,410.60/2,897,115.90 = 1,212,908.20/x
  3. Step 3: Cross multiply
    1,931,410.60x = 2,897,115.90 × 1,212,908.20
  4. Step 4: Simplify right side
    1,931,410.60x = 3,513,935,631,460.38
  5. Step 5: Solve for x
    x = 3,513,935,631,460.38/1,931,410.60
  6. Step 6: Final answer
    x = 1,819,362.30

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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.