Home / 1,977,485.40-2,966,228.10-912,212.28

Finding the Fourth Proportional to 1,977,485.40, 2,966,228.10 and 912,212.28

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Solution

The fourth proportional to 1,977,485.40, 2,966,228.10 and 912,212.28 is: 1,368,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,485.40 : 2,966,228.10 = 912,212.28 : x
  2. Step 2: Convert to fraction form
    1,977,485.40/2,966,228.10 = 912,212.28/x
  3. Step 3: Cross multiply
    1,977,485.40x = 2,966,228.10 × 912,212.28
  4. Step 4: Simplify right side
    1,977,485.40x = 2,705,829,698,101.07
  5. Step 5: Solve for x
    x = 2,705,829,698,101.07/1,977,485.40
  6. Step 6: Final answer
    x = 1,368,318.42

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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.