Home / 3,116,138.40-4,673,332.80-986,875.20

Finding the Fourth Proportional to 3,116,138.40, 4,673,332.80 and 986,875.20

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Solution

The fourth proportional to 3,116,138.40, 4,673,332.80 and 986,875.20 is: 1,480,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116,138.40 : 4,673,332.80 = 986,875.20 : x
  2. Step 2: Convert to fraction form
    3,116,138.40/4,673,332.80 = 986,875.20/x
  3. Step 3: Cross multiply
    3,116,138.40x = 4,673,332.80 × 986,875.20
  4. Step 4: Simplify right side
    3,116,138.40x = 4,611,996,241,666.56
  5. Step 5: Solve for x
    x = 4,611,996,241,666.56/3,116,138.40
  6. Step 6: Final answer
    x = 1,480,035.75

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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.