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Finding the Fourth Proportional to 604,810.12, 906,706.72 and 404,519.20

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Solution

The fourth proportional to 604,810.12, 906,706.72 and 404,519.20 is: 606,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,810.12 : 906,706.72 = 404,519.20 : x
  2. Step 2: Convert to fraction form
    604,810.12/906,706.72 = 404,519.20/x
  3. Step 3: Cross multiply
    604,810.12x = 906,706.72 × 404,519.20
  4. Step 4: Simplify right side
    604,810.12x = 366,780,277,009.02
  5. Step 5: Solve for x
    x = 366,780,277,009.02/604,810.12
  6. Step 6: Final answer
    x = 606,438.72

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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.