Home / 708,629.36-1,063,384.86-287,905.24

Finding the Fourth Proportional to 708,629.36, 1,063,384.86 and 287,905.24

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Solution

The fourth proportional to 708,629.36, 1,063,384.86 and 287,905.24 is: 432,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,629.36 : 1,063,384.86 = 287,905.24 : x
  2. Step 2: Convert to fraction form
    708,629.36/1,063,384.86 = 287,905.24/x
  3. Step 3: Cross multiply
    708,629.36x = 1,063,384.86 × 287,905.24
  4. Step 4: Simplify right side
    708,629.36x = 306,154,068,013.74
  5. Step 5: Solve for x
    x = 306,154,068,013.74/708,629.36
  6. Step 6: Final answer
    x = 432,036.95

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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.