Home / 781,871.70-1,079,084.58-437,838.62

Finding the Fourth Proportional to 781,871.70, 1,079,084.58 and 437,838.62

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Solution

The fourth proportional to 781,871.70, 1,079,084.58 and 437,838.62 is: 604,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,871.70 : 1,079,084.58 = 437,838.62 : x
  2. Step 2: Convert to fraction form
    781,871.70/1,079,084.58 = 437,838.62/x
  3. Step 3: Cross multiply
    781,871.70x = 1,079,084.58 × 437,838.62
  4. Step 4: Simplify right side
    781,871.70x = 472,464,903,370.48
  5. Step 5: Solve for x
    x = 472,464,903,370.48/781,871.70
  6. Step 6: Final answer
    x = 604,274.21

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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.