Home / 782,505.64-1,079,841.54-424,809.64

Finding the Fourth Proportional to 782,505.64, 1,079,841.54 and 424,809.64

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Solution

The fourth proportional to 782,505.64, 1,079,841.54 and 424,809.64 is: 586,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,505.64 : 1,079,841.54 = 424,809.64 : x
  2. Step 2: Convert to fraction form
    782,505.64/1,079,841.54 = 424,809.64/x
  3. Step 3: Cross multiply
    782,505.64x = 1,079,841.54 × 424,809.64
  4. Step 4: Simplify right side
    782,505.64x = 458,727,095,864.45
  5. Step 5: Solve for x
    x = 458,727,095,864.45/782,505.64
  6. Step 6: Final answer
    x = 586,228.49

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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.