Home / 430,314.09-644,209.36-301,784.91

Finding the Fourth Proportional to 430,314.09, 644,209.36 and 301,784.91

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Solution

The fourth proportional to 430,314.09, 644,209.36 and 301,784.91 is: 451,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,314.09 : 644,209.36 = 301,784.91 : x
  2. Step 2: Convert to fraction form
    430,314.09/644,209.36 = 301,784.91/x
  3. Step 3: Cross multiply
    430,314.09x = 644,209.36 × 301,784.91
  4. Step 4: Simplify right side
    430,314.09x = 194,412,662,974.30
  5. Step 5: Solve for x
    x = 194,412,662,974.30/430,314.09
  6. Step 6: Final answer
    x = 451,792.46

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1.5x scale

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.