Home / 1,559,730.40-2,152,388.30-871,407.42

Finding the Fourth Proportional to 1,559,730.40, 2,152,388.30 and 871,407.42

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Solution

The fourth proportional to 1,559,730.40, 2,152,388.30 and 871,407.42 is: 1,202,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,730.40 : 2,152,388.30 = 871,407.42 : x
  2. Step 2: Convert to fraction form
    1,559,730.40/2,152,388.30 = 871,407.42/x
  3. Step 3: Cross multiply
    1,559,730.40x = 2,152,388.30 × 871,407.42
  4. Step 4: Simplify right side
    1,559,730.40x = 1,875,607,135,019.88
  5. Step 5: Solve for x
    x = 1,875,607,135,019.88/1,559,730.40
  6. Step 6: Final answer
    x = 1,202,520.09

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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.