Home / 712,004.80-1,068,007.20-432,068.80

Finding the Fourth Proportional to 712,004.80, 1,068,007.20 and 432,068.80

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Solution

The fourth proportional to 712,004.80, 1,068,007.20 and 432,068.80 is: 648,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,004.80 : 1,068,007.20 = 432,068.80 : x
  2. Step 2: Convert to fraction form
    712,004.80/1,068,007.20 = 432,068.80/x
  3. Step 3: Cross multiply
    712,004.80x = 1,068,007.20 × 432,068.80
  4. Step 4: Simplify right side
    712,004.80x = 461,452,589,295.36
  5. Step 5: Solve for x
    x = 461,452,589,295.36/712,004.80
  6. Step 6: Final answer
    x = 648,103.20

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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.