Home / 1,688,426.64-2,330,011.08-914,040.12

Finding the Fourth Proportional to 1,688,426.64, 2,330,011.08 and 914,040.12

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Solution

The fourth proportional to 1,688,426.64, 2,330,011.08 and 914,040.12 is: 1,261,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,426.64 : 2,330,011.08 = 914,040.12 : x
  2. Step 2: Convert to fraction form
    1,688,426.64/2,330,011.08 = 914,040.12/x
  3. Step 3: Cross multiply
    1,688,426.64x = 2,330,011.08 × 914,040.12
  4. Step 4: Simplify right side
    1,688,426.64x = 2,129,723,607,164.53
  5. Step 5: Solve for x
    x = 2,129,723,607,164.53/1,688,426.64
  6. Step 6: Final answer
    x = 1,261,365.79

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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.