Home / 1,216,030.56-1,678,092.88-664,721.76

Finding the Fourth Proportional to 1,216,030.56, 1,678,092.88 and 664,721.76

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Solution

The fourth proportional to 1,216,030.56, 1,678,092.88 and 664,721.76 is: 917,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,030.56 : 1,678,092.88 = 664,721.76 : x
  2. Step 2: Convert to fraction form
    1,216,030.56/1,678,092.88 = 664,721.76/x
  3. Step 3: Cross multiply
    1,216,030.56x = 1,678,092.88 × 664,721.76
  4. Step 4: Simplify right side
    1,216,030.56x = 1,115,464,852,637.07
  5. Step 5: Solve for x
    x = 1,115,464,852,637.07/1,216,030.56
  6. Step 6: Final answer
    x = 917,300.02

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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.