Home / 1,287,460.59-1,931,371.34-388,800.42

Finding the Fourth Proportional to 1,287,460.59, 1,931,371.34 and 388,800.42

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Solution

The fourth proportional to 1,287,460.59, 1,931,371.34 and 388,800.42 is: 583,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,460.59 : 1,931,371.34 = 388,800.42 : x
  2. Step 2: Convert to fraction form
    1,287,460.59/1,931,371.34 = 388,800.42/x
  3. Step 3: Cross multiply
    1,287,460.59x = 1,931,371.34 × 388,800.42
  4. Step 4: Simplify right side
    1,287,460.59x = 750,917,986,223.96
  5. Step 5: Solve for x
    x = 750,917,986,223.96/1,287,460.59
  6. Step 6: Final answer
    x = 583,255.12

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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.