Home / 1,355,846.05-1,871,944.05-840,147.19

Finding the Fourth Proportional to 1,355,846.05, 1,871,944.05 and 840,147.19

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Solution

The fourth proportional to 1,355,846.05, 1,871,944.05 and 840,147.19 is: 1,159,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,846.05 : 1,871,944.05 = 840,147.19 : x
  2. Step 2: Convert to fraction form
    1,355,846.05/1,871,944.05 = 840,147.19/x
  3. Step 3: Cross multiply
    1,355,846.05x = 1,871,944.05 × 840,147.19
  4. Step 4: Simplify right side
    1,355,846.05x = 1,572,708,536,672.61
  5. Step 5: Solve for x
    x = 1,572,708,536,672.61/1,355,846.05
  6. Step 6: Final answer
    x = 1,159,946.25

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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.