Home / 666,887.65-1,000,329.93-515,305.15

Finding the Fourth Proportional to 666,887.65, 1,000,329.93 and 515,305.15

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Solution

The fourth proportional to 666,887.65, 1,000,329.93 and 515,305.15 is: 772,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,887.65 : 1,000,329.93 = 515,305.15 : x
  2. Step 2: Convert to fraction form
    666,887.65/1,000,329.93 = 515,305.15/x
  3. Step 3: Cross multiply
    666,887.65x = 1,000,329.93 × 515,305.15
  4. Step 4: Simplify right side
    666,887.65x = 515,475,162,127.32
  5. Step 5: Solve for x
    x = 515,475,162,127.32/666,887.65
  6. Step 6: Final answer
    x = 772,956.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.