Home / 1,355,852.30-1,871,952.70-840,153.44

Finding the Fourth Proportional to 1,355,852.30, 1,871,952.70 and 840,153.44

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Solution

The fourth proportional to 1,355,852.30, 1,871,952.70 and 840,153.44 is: 1,159,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,852.30 : 1,871,952.70 = 840,153.44 : x
  2. Step 2: Convert to fraction form
    1,355,852.30/1,871,952.70 = 840,153.44/x
  3. Step 3: Cross multiply
    1,355,852.30x = 1,871,952.70 × 840,153.44
  4. Step 4: Simplify right side
    1,355,852.30x = 1,572,727,500,422.29
  5. Step 5: Solve for x
    x = 1,572,727,500,422.29/1,355,852.30
  6. Step 6: Final answer
    x = 1,159,954.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.