Home / 1,228,714.65-1,695,597.32-712,560.78

Finding the Fourth Proportional to 1,228,714.65, 1,695,597.32 and 712,560.78

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Solution

The fourth proportional to 1,228,714.65, 1,695,597.32 and 712,560.78 is: 983,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,714.65 : 1,695,597.32 = 712,560.78 : x
  2. Step 2: Convert to fraction form
    1,228,714.65/1,695,597.32 = 712,560.78/x
  3. Step 3: Cross multiply
    1,228,714.65x = 1,695,597.32 × 712,560.78
  4. Step 4: Simplify right side
    1,228,714.65x = 1,208,216,148,905.11
  5. Step 5: Solve for x
    x = 1,208,216,148,905.11/1,228,714.65
  6. Step 6: Final answer
    x = 983,317.12

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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.