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Finding the Fourth Proportional to 655,341.84, 904,542.66 and 400,906.26

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Solution

The fourth proportional to 655,341.84, 904,542.66 and 400,906.26 is: 553,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,341.84 : 904,542.66 = 400,906.26 : x
  2. Step 2: Convert to fraction form
    655,341.84/904,542.66 = 400,906.26/x
  3. Step 3: Cross multiply
    655,341.84x = 904,542.66 × 400,906.26
  4. Step 4: Simplify right side
    655,341.84x = 362,636,814,831.05
  5. Step 5: Solve for x
    x = 362,636,814,831.05/655,341.84
  6. Step 6: Final answer
    x = 553,355.20

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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.