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Finding the Fourth Proportional to 528,507.84, 729,946.40 and 348,026.56

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Solution

The fourth proportional to 528,507.84, 729,946.40 and 348,026.56 is: 480,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,507.84 : 729,946.40 = 348,026.56 : x
  2. Step 2: Convert to fraction form
    528,507.84/729,946.40 = 348,026.56/x
  3. Step 3: Cross multiply
    528,507.84x = 729,946.40 × 348,026.56
  4. Step 4: Simplify right side
    528,507.84x = 254,040,734,576.38
  5. Step 5: Solve for x
    x = 254,040,734,576.38/528,507.84
  6. Step 6: Final answer
    x = 480,675.43

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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.