Home / 877,414.20-1,315,214.10-477,209.40

Finding the Fourth Proportional to 877,414.20, 1,315,214.10 and 477,209.40

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Solution

The fourth proportional to 877,414.20, 1,315,214.10 and 477,209.40 is: 715,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,414.20 : 1,315,214.10 = 477,209.40 : x
  2. Step 2: Convert to fraction form
    877,414.20/1,315,214.10 = 477,209.40/x
  3. Step 3: Cross multiply
    877,414.20x = 1,315,214.10 × 477,209.40
  4. Step 4: Simplify right side
    877,414.20x = 627,632,531,532.54
  5. Step 5: Solve for x
    x = 627,632,531,532.54/877,414.20
  6. Step 6: Final answer
    x = 715,320.69

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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.