Home / 3,142,423.36-4,712,774.77-867,403.90

Finding the Fourth Proportional to 3,142,423.36, 4,712,774.77 and 867,403.90

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Solution

The fourth proportional to 3,142,423.36, 4,712,774.77 and 867,403.90 is: 1,300,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142,423.36 : 4,712,774.77 = 867,403.90 : x
  2. Step 2: Convert to fraction form
    3,142,423.36/4,712,774.77 = 867,403.90/x
  3. Step 3: Cross multiply
    3,142,423.36x = 4,712,774.77 × 867,403.90
  4. Step 4: Simplify right side
    3,142,423.36x = 4,087,879,215,319.60
  5. Step 5: Solve for x
    x = 4,087,879,215,319.60/3,142,423.36
  6. Step 6: Final answer
    x = 1,300,868.39

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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.