Home / 1,578,686.40-2,366,474.40-780,091.20

Finding the Fourth Proportional to 1,578,686.40, 2,366,474.40 and 780,091.20

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Solution

The fourth proportional to 1,578,686.40, 2,366,474.40 and 780,091.20 is: 1,169,368.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,686.40 : 2,366,474.40 = 780,091.20 : x
  2. Step 2: Convert to fraction form
    1,578,686.40/2,366,474.40 = 780,091.20/x
  3. Step 3: Cross multiply
    1,578,686.40x = 2,366,474.40 × 780,091.20
  4. Step 4: Simplify right side
    1,578,686.40x = 1,846,065,854,465.28
  5. Step 5: Solve for x
    x = 1,846,065,854,465.28/1,578,686.40
  6. Step 6: Final answer
    x = 1,169,368.31

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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.