Home / 786,636.40-1,180,829.40-487,454.80

Finding the Fourth Proportional to 786,636.40, 1,180,829.40 and 487,454.80

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Solution

The fourth proportional to 786,636.40, 1,180,829.40 and 487,454.80 is: 731,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,636.40 : 1,180,829.40 = 487,454.80 : x
  2. Step 2: Convert to fraction form
    786,636.40/1,180,829.40 = 487,454.80/x
  3. Step 3: Cross multiply
    786,636.40x = 1,180,829.40 × 487,454.80
  4. Step 4: Simplify right side
    786,636.40x = 575,600,959,011.12
  5. Step 5: Solve for x
    x = 575,600,959,011.12/786,636.40
  6. Step 6: Final answer
    x = 731,724.29

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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.