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Finding the Fourth Proportional to 971,361.40, 1,457,042.10 and 551,457.40

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Solution

The fourth proportional to 971,361.40, 1,457,042.10 and 551,457.40 is: 827,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,361.40 : 1,457,042.10 = 551,457.40 : x
  2. Step 2: Convert to fraction form
    971,361.40/1,457,042.10 = 551,457.40/x
  3. Step 3: Cross multiply
    971,361.40x = 1,457,042.10 × 551,457.40
  4. Step 4: Simplify right side
    971,361.40x = 803,496,648,156.54
  5. Step 5: Solve for x
    x = 803,496,648,156.54/971,361.40
  6. Step 6: Final answer
    x = 827,186.10

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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.