Home / 1,913,756.31-2,870,109.59-715,280.31

Finding the Fourth Proportional to 1,913,756.31, 2,870,109.59 and 715,280.31

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Solution

The fourth proportional to 1,913,756.31, 2,870,109.59 and 715,280.31 is: 1,072,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,756.31 : 2,870,109.59 = 715,280.31 : x
  2. Step 2: Convert to fraction form
    1,913,756.31/2,870,109.59 = 715,280.31/x
  3. Step 3: Cross multiply
    1,913,756.31x = 2,870,109.59 × 715,280.31
  4. Step 4: Simplify right side
    1,913,756.31x = 2,052,932,873,692.77
  5. Step 5: Solve for x
    x = 2,052,932,873,692.77/1,913,756.31
  6. Step 6: Final answer
    x = 1,072,724.29

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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.