Home / 787,259.76-1,086,387.12-465,073.32

Finding the Fourth Proportional to 787,259.76, 1,086,387.12 and 465,073.32

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Solution

The fourth proportional to 787,259.76, 1,086,387.12 and 465,073.32 is: 641,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,259.76 : 1,086,387.12 = 465,073.32 : x
  2. Step 2: Convert to fraction form
    787,259.76/1,086,387.12 = 465,073.32/x
  3. Step 3: Cross multiply
    787,259.76x = 1,086,387.12 × 465,073.32
  4. Step 4: Simplify right side
    787,259.76x = 505,249,664,703.64
  5. Step 5: Solve for x
    x = 505,249,664,703.64/787,259.76
  6. Step 6: Final answer
    x = 641,782.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.