Home / 658,821.40-908,489.82-563,643.16

Finding the Fourth Proportional to 658,821.40, 908,489.82 and 563,643.16

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Solution

The fourth proportional to 658,821.40, 908,489.82 and 563,643.16 is: 777,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,821.40 : 908,489.82 = 563,643.16 : x
  2. Step 2: Convert to fraction form
    658,821.40/908,489.82 = 563,643.16/x
  3. Step 3: Cross multiply
    658,821.40x = 908,489.82 × 563,643.16
  4. Step 4: Simplify right side
    658,821.40x = 512,064,072,972.63
  5. Step 5: Solve for x
    x = 512,064,072,972.63/658,821.40
  6. Step 6: Final answer
    x = 777,242.62

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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.