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Finding the Fourth Proportional to 553,670.80, 830,506.20 and 301,072.30

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Solution

The fourth proportional to 553,670.80, 830,506.20 and 301,072.30 is: 451,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,670.80 : 830,506.20 = 301,072.30 : x
  2. Step 2: Convert to fraction form
    553,670.80/830,506.20 = 301,072.30/x
  3. Step 3: Cross multiply
    553,670.80x = 830,506.20 × 301,072.30
  4. Step 4: Simplify right side
    553,670.80x = 250,042,411,798.26
  5. Step 5: Solve for x
    x = 250,042,411,798.26/553,670.80
  6. Step 6: Final answer
    x = 451,608.45

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Similar ratio
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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.