Home / 918,620.47-1,267,801.10-510,762.79

Finding the Fourth Proportional to 918,620.47, 1,267,801.10 and 510,762.79

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Solution

The fourth proportional to 918,620.47, 1,267,801.10 and 510,762.79 is: 704,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,620.47 : 1,267,801.10 = 510,762.79 : x
  2. Step 2: Convert to fraction form
    918,620.47/1,267,801.10 = 510,762.79/x
  3. Step 3: Cross multiply
    918,620.47x = 1,267,801.10 × 510,762.79
  4. Step 4: Simplify right side
    918,620.47x = 647,545,627,001.07
  5. Step 5: Solve for x
    x = 647,545,627,001.07/918,620.47
  6. Step 6: Final answer
    x = 704,910.95

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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.