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Finding the Fourth Proportional to 560,640.09, 841,070.90 and 205,657.18

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Solution

The fourth proportional to 560,640.09, 841,070.90 and 205,657.18 is: 308,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,640.09 : 841,070.90 = 205,657.18 : x
  2. Step 2: Convert to fraction form
    560,640.09/841,070.90 = 205,657.18/x
  3. Step 3: Cross multiply
    560,640.09x = 841,070.90 × 205,657.18
  4. Step 4: Simplify right side
    560,640.09x = 172,972,269,474.06
  5. Step 5: Solve for x
    x = 172,972,269,474.06/560,640.09
  6. Step 6: Final answer
    x = 308,526.40

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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.