Home / 914,692.32-1,262,714.18-642,993.12

Finding the Fourth Proportional to 914,692.32, 1,262,714.18 and 642,993.12

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Solution

The fourth proportional to 914,692.32, 1,262,714.18 and 642,993.12 is: 887,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,692.32 : 1,262,714.18 = 642,993.12 : x
  2. Step 2: Convert to fraction form
    914,692.32/1,262,714.18 = 642,993.12/x
  3. Step 3: Cross multiply
    914,692.32x = 1,262,714.18 × 642,993.12
  4. Step 4: Simplify right side
    914,692.32x = 811,916,527,051.48
  5. Step 5: Solve for x
    x = 811,916,527,051.48/914,692.32
  6. Step 6: Final answer
    x = 887,638.95

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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.