Home / 1,216,054.80-1,678,156.02-664,772.94

Finding the Fourth Proportional to 1,216,054.80, 1,678,156.02 and 664,772.94

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Solution

The fourth proportional to 1,216,054.80, 1,678,156.02 and 664,772.94 is: 917,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,054.80 : 1,678,156.02 = 664,772.94 : x
  2. Step 2: Convert to fraction form
    1,216,054.80/1,678,156.02 = 664,772.94/x
  3. Step 3: Cross multiply
    1,216,054.80x = 1,678,156.02 × 664,772.94
  4. Step 4: Simplify right side
    1,216,054.80x = 1,115,592,711,194.10
  5. Step 5: Solve for x
    x = 1,115,592,711,194.10/1,216,054.80
  6. Step 6: Final answer
    x = 917,386.87

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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.