Home / 1,247,185.40-1,871,123.70-827,281.40

Finding the Fourth Proportional to 1,247,185.40, 1,871,123.70 and 827,281.40

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Solution

The fourth proportional to 1,247,185.40, 1,871,123.70 and 827,281.40 is: 1,241,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,185.40 : 1,871,123.70 = 827,281.40 : x
  2. Step 2: Convert to fraction form
    1,247,185.40/1,871,123.70 = 827,281.40/x
  3. Step 3: Cross multiply
    1,247,185.40x = 1,871,123.70 × 827,281.40
  4. Step 4: Simplify right side
    1,247,185.40x = 1,547,945,834,109.18
  5. Step 5: Solve for x
    x = 1,547,945,834,109.18/1,247,185.40
  6. Step 6: Final answer
    x = 1,241,151.34

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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.