Home / 1,189,323.66-1,641,267.50-645,459.32

Finding the Fourth Proportional to 1,189,323.66, 1,641,267.50 and 645,459.32

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Solution

The fourth proportional to 1,189,323.66, 1,641,267.50 and 645,459.32 is: 890,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,323.66 : 1,641,267.50 = 645,459.32 : x
  2. Step 2: Convert to fraction form
    1,189,323.66/1,641,267.50 = 645,459.32/x
  3. Step 3: Cross multiply
    1,189,323.66x = 1,641,267.50 × 645,459.32
  4. Step 4: Simplify right side
    1,189,323.66x = 1,059,371,393,054.47
  5. Step 5: Solve for x
    x = 1,059,371,393,054.47/1,189,323.66
  6. Step 6: Final answer
    x = 890,734.31

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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.