Home / 661,623.30-990,466.65-437,237.10

Finding the Fourth Proportional to 661,623.30, 990,466.65 and 437,237.10

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Solution

The fourth proportional to 661,623.30, 990,466.65 and 437,237.10 is: 654,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,623.30 : 990,466.65 = 437,237.10 : x
  2. Step 2: Convert to fraction form
    661,623.30/990,466.65 = 437,237.10/x
  3. Step 3: Cross multiply
    661,623.30x = 990,466.65 × 437,237.10
  4. Step 4: Simplify right side
    661,623.30x = 433,068,765,692.72
  5. Step 5: Solve for x
    x = 433,068,765,692.72/661,623.30
  6. Step 6: Final answer
    x = 654,554.89

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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.