Home / 918,320.78-1,377,495.04-349,733.36

Finding the Fourth Proportional to 918,320.78, 1,377,495.04 and 349,733.36

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Solution

The fourth proportional to 918,320.78, 1,377,495.04 and 349,733.36 is: 524,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,320.78 : 1,377,495.04 = 349,733.36 : x
  2. Step 2: Convert to fraction form
    918,320.78/1,377,495.04 = 349,733.36/x
  3. Step 3: Cross multiply
    918,320.78x = 1,377,495.04 × 349,733.36
  4. Step 4: Simplify right side
    918,320.78x = 481,755,968,722.53
  5. Step 5: Solve for x
    x = 481,755,968,722.53/918,320.78
  6. Step 6: Final answer
    x = 524,605.32

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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.