Home / 430,022.80-641,405.92-373,417.80

Finding the Fourth Proportional to 430,022.80, 641,405.92 and 373,417.80

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Solution

The fourth proportional to 430,022.80, 641,405.92 and 373,417.80 is: 556,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,022.80 : 641,405.92 = 373,417.80 : x
  2. Step 2: Convert to fraction form
    430,022.80/641,405.92 = 373,417.80/x
  3. Step 3: Cross multiply
    430,022.80x = 641,405.92 × 373,417.80
  4. Step 4: Simplify right side
    430,022.80x = 239,512,387,553.38
  5. Step 5: Solve for x
    x = 239,512,387,553.38/430,022.80
  6. Step 6: Final answer
    x = 556,976.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.