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Finding the Fourth Proportional to 553,397.22, 828,220.82 and 340,300.06

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Solution

The fourth proportional to 553,397.22, 828,220.82 and 340,300.06 is: 509,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,397.22 : 828,220.82 = 340,300.06 : x
  2. Step 2: Convert to fraction form
    553,397.22/828,220.82 = 340,300.06/x
  3. Step 3: Cross multiply
    553,397.22x = 828,220.82 × 340,300.06
  4. Step 4: Simplify right side
    553,397.22x = 281,843,590,967.20
  5. Step 5: Solve for x
    x = 281,843,590,967.20/553,397.22
  6. Step 6: Final answer
    x = 509,297.08

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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.