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Finding the Fourth Proportional to 528,948, 793,422 and 134,964

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Solution

The fourth proportional to 528,948, 793,422 and 134,964 is: 202,446

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,948 : 793,422 = 134,964 : x
  2. Step 2: Convert to fraction form
    528,948/793,422 = 134,964/x
  3. Step 3: Cross multiply
    528,948x = 793,422 × 134,964
  4. Step 4: Simplify right side
    528,948x = 107,083,406,808
  5. Step 5: Solve for x
    x = 107,083,406,808/528,948
  6. Step 6: Final answer
    x = 202,446

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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.