Home / 783,451.86-1,074,122.40-769,280.10

Finding the Fourth Proportional to 783,451.86, 1,074,122.40 and 769,280.10

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Solution

The fourth proportional to 783,451.86, 1,074,122.40 and 769,280.10 is: 1,054,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,451.86 : 1,074,122.40 = 769,280.10 : x
  2. Step 2: Convert to fraction form
    783,451.86/1,074,122.40 = 769,280.10/x
  3. Step 3: Cross multiply
    783,451.86x = 1,074,122.40 × 769,280.10
  4. Step 4: Simplify right side
    783,451.86x = 826,300,987,284.24
  5. Step 5: Solve for x
    x = 826,300,987,284.24/783,451.86
  6. Step 6: Final answer
    x = 1,054,692.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.