Home / 558,001.12-770,048.02-309,648.16

Finding the Fourth Proportional to 558,001.12, 770,048.02 and 309,648.16

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Solution

The fourth proportional to 558,001.12, 770,048.02 and 309,648.16 is: 427,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,001.12 : 770,048.02 = 309,648.16 : x
  2. Step 2: Convert to fraction form
    558,001.12/770,048.02 = 309,648.16/x
  3. Step 3: Cross multiply
    558,001.12x = 770,048.02 × 309,648.16
  4. Step 4: Simplify right side
    558,001.12x = 238,443,952,504.64
  5. Step 5: Solve for x
    x = 238,443,952,504.64/558,001.12
  6. Step 6: Final answer
    x = 427,318.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.