Home / 499,815.73-689,526.57-292,979.30

Finding the Fourth Proportional to 499,815.73, 689,526.57 and 292,979.30

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Solution

The fourth proportional to 499,815.73, 689,526.57 and 292,979.30 is: 404,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,815.73 : 689,526.57 = 292,979.30 : x
  2. Step 2: Convert to fraction form
    499,815.73/689,526.57 = 292,979.30/x
  3. Step 3: Cross multiply
    499,815.73x = 689,526.57 × 292,979.30
  4. Step 4: Simplify right side
    499,815.73x = 202,017,009,461.04
  5. Step 5: Solve for x
    x = 202,017,009,461.04/499,815.73
  6. Step 6: Final answer
    x = 404,182.98

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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.