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Finding the Fourth Proportional to 556,223.76, 767,306.16 and 351,930.24

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Solution

The fourth proportional to 556,223.76, 767,306.16 and 351,930.24 is: 485,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,223.76 : 767,306.16 = 351,930.24 : x
  2. Step 2: Convert to fraction form
    556,223.76/767,306.16 = 351,930.24/x
  3. Step 3: Cross multiply
    556,223.76x = 767,306.16 × 351,930.24
  4. Step 4: Simplify right side
    556,223.76x = 270,038,241,042.28
  5. Step 5: Solve for x
    x = 270,038,241,042.28/556,223.76
  6. Step 6: Final answer
    x = 485,484.91

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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.