Home / 1,285,692.48-1,774,135.80-712,683.72

Finding the Fourth Proportional to 1,285,692.48, 1,774,135.80 and 712,683.72

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Solution

The fourth proportional to 1,285,692.48, 1,774,135.80 and 712,683.72 is: 983,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,692.48 : 1,774,135.80 = 712,683.72 : x
  2. Step 2: Convert to fraction form
    1,285,692.48/1,774,135.80 = 712,683.72/x
  3. Step 3: Cross multiply
    1,285,692.48x = 1,774,135.80 × 712,683.72
  4. Step 4: Simplify right side
    1,285,692.48x = 1,264,397,701,729.18
  5. Step 5: Solve for x
    x = 1,264,397,701,729.18/1,285,692.48
  6. Step 6: Final answer
    x = 983,437.11

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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.