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Finding the Fourth Proportional to 914,270, 1,371,140.22 and 274,547.90

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Solution

The fourth proportional to 914,270, 1,371,140.22 and 274,547.90 is: 411,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,270 : 1,371,140.22 = 274,547.90 : x
  2. Step 2: Convert to fraction form
    914,270/1,371,140.22 = 274,547.90/x
  3. Step 3: Cross multiply
    914,270x = 1,371,140.22 × 274,547.90
  4. Step 4: Simplify right side
    914,270x = 376,443,668,006.54
  5. Step 5: Solve for x
    x = 376,443,668,006.54/914,270
  6. Step 6: Final answer
    x = 411,742.34

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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.