Home / 988,417.12-1,481,607.04-389,135.20

Finding the Fourth Proportional to 988,417.12, 1,481,607.04 and 389,135.20

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Solution

The fourth proportional to 988,417.12, 1,481,607.04 and 389,135.20 is: 583,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,417.12 : 1,481,607.04 = 389,135.20 : x
  2. Step 2: Convert to fraction form
    988,417.12/1,481,607.04 = 389,135.20/x
  3. Step 3: Cross multiply
    988,417.12x = 1,481,607.04 × 389,135.20
  4. Step 4: Simplify right side
    988,417.12x = 576,545,451,831.81
  5. Step 5: Solve for x
    x = 576,545,451,831.81/988,417.12
  6. Step 6: Final answer
    x = 583,301.77

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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.