Home / 987,475.66-1,481,582.54-388,854.11

Finding the Fourth Proportional to 987,475.66, 1,481,582.54 and 388,854.11

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Solution

The fourth proportional to 987,475.66, 1,481,582.54 and 388,854.11 is: 583,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,475.66 : 1,481,582.54 = 388,854.11 : x
  2. Step 2: Convert to fraction form
    987,475.66/1,481,582.54 = 388,854.11/x
  3. Step 3: Cross multiply
    987,475.66x = 1,481,582.54 × 388,854.11
  4. Step 4: Simplify right side
    987,475.66x = 576,119,464,659.33
  5. Step 5: Solve for x
    x = 576,119,464,659.33/987,475.66
  6. Step 6: Final answer
    x = 583,426.50

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1.5x scale

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.