Home / 927,988.54-1,280,714.07-520,159.66

Finding the Fourth Proportional to 927,988.54, 1,280,714.07 and 520,159.66

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Solution

The fourth proportional to 927,988.54, 1,280,714.07 and 520,159.66 is: 717,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,988.54 : 1,280,714.07 = 520,159.66 : x
  2. Step 2: Convert to fraction form
    927,988.54/1,280,714.07 = 520,159.66/x
  3. Step 3: Cross multiply
    927,988.54x = 1,280,714.07 × 520,159.66
  4. Step 4: Simplify right side
    927,988.54x = 666,175,795,208.42
  5. Step 5: Solve for x
    x = 666,175,795,208.42/927,988.54
  6. Step 6: Final answer
    x = 717,870.71

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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.