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Finding the Fourth Proportional to 542,710.16, 749,311.20 and 339,071.36

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Solution

The fourth proportional to 542,710.16, 749,311.20 and 339,071.36 is: 468,150.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,710.16 : 749,311.20 = 339,071.36 : x
  2. Step 2: Convert to fraction form
    542,710.16/749,311.20 = 339,071.36/x
  3. Step 3: Cross multiply
    542,710.16x = 749,311.20 × 339,071.36
  4. Step 4: Simplify right side
    542,710.16x = 254,069,967,647.23
  5. Step 5: Solve for x
    x = 254,069,967,647.23/542,710.16
  6. Step 6: Final answer
    x = 468,150.38

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1.5x scale

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.