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Finding the Fourth Proportional to 562,019.38, 775,587.35 and 307,371.17

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Solution

The fourth proportional to 562,019.38, 775,587.35 and 307,371.17 is: 424,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,019.38 : 775,587.35 = 307,371.17 : x
  2. Step 2: Convert to fraction form
    562,019.38/775,587.35 = 307,371.17/x
  3. Step 3: Cross multiply
    562,019.38x = 775,587.35 × 307,371.17
  4. Step 4: Simplify right side
    562,019.38x = 238,393,189,669.84
  5. Step 5: Solve for x
    x = 238,393,189,669.84/562,019.38
  6. Step 6: Final answer
    x = 424,172.55

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1.5x scale

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.