Home / 783,465.85-1,080,784.95-511,692.85

Finding the Fourth Proportional to 783,465.85, 1,080,784.95 and 511,692.85

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Solution

The fourth proportional to 783,465.85, 1,080,784.95 and 511,692.85 is: 705,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,465.85 : 1,080,784.95 = 511,692.85 : x
  2. Step 2: Convert to fraction form
    783,465.85/1,080,784.95 = 511,692.85/x
  3. Step 3: Cross multiply
    783,465.85x = 1,080,784.95 × 511,692.85
  4. Step 4: Simplify right side
    783,465.85x = 553,029,925,898.68
  5. Step 5: Solve for x
    x = 553,029,925,898.68/783,465.85
  6. Step 6: Final answer
    x = 705,876.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.