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Finding the Fourth Proportional to 611,702.70, 917,554.05 and 274,904.70

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Solution

The fourth proportional to 611,702.70, 917,554.05 and 274,904.70 is: 412,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,702.70 : 917,554.05 = 274,904.70 : x
  2. Step 2: Convert to fraction form
    611,702.70/917,554.05 = 274,904.70/x
  3. Step 3: Cross multiply
    611,702.70x = 917,554.05 × 274,904.70
  4. Step 4: Simplify right side
    611,702.70x = 252,239,920,849.04
  5. Step 5: Solve for x
    x = 252,239,920,849.04/611,702.70
  6. Step 6: Final answer
    x = 412,357.05

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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.