Home / 498,585.74-688,038.84-304,979.27

Finding the Fourth Proportional to 498,585.74, 688,038.84 and 304,979.27

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Solution

The fourth proportional to 498,585.74, 688,038.84 and 304,979.27 is: 420,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,585.74 : 688,038.84 = 304,979.27 : x
  2. Step 2: Convert to fraction form
    498,585.74/688,038.84 = 304,979.27/x
  3. Step 3: Cross multiply
    498,585.74x = 688,038.84 × 304,979.27
  4. Step 4: Simplify right side
    498,585.74x = 209,837,579,714.65
  5. Step 5: Solve for x
    x = 209,837,579,714.65/498,585.74
  6. Step 6: Final answer
    x = 420,865.59

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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.