Home / 712,608.98-1,068,913.20-286,144.68

Finding the Fourth Proportional to 712,608.98, 1,068,913.20 and 286,144.68

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Solution

The fourth proportional to 712,608.98, 1,068,913.20 and 286,144.68 is: 429,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,608.98 : 1,068,913.20 = 286,144.68 : x
  2. Step 2: Convert to fraction form
    712,608.98/1,068,913.20 = 286,144.68/x
  3. Step 3: Cross multiply
    712,608.98x = 1,068,913.20 × 286,144.68
  4. Step 4: Simplify right side
    712,608.98x = 305,863,825,561.78
  5. Step 5: Solve for x
    x = 305,863,825,561.78/712,608.98
  6. Step 6: Final answer
    x = 429,216.91

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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.