Home / 878,564.61-1,317,347.55-345,796.83

Finding the Fourth Proportional to 878,564.61, 1,317,347.55 and 345,796.83

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Solution

The fourth proportional to 878,564.61, 1,317,347.55 and 345,796.83 is: 518,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,564.61 : 1,317,347.55 = 345,796.83 : x
  2. Step 2: Convert to fraction form
    878,564.61/1,317,347.55 = 345,796.83/x
  3. Step 3: Cross multiply
    878,564.61x = 1,317,347.55 × 345,796.83
  4. Step 4: Simplify right side
    878,564.61x = 455,534,606,798.27
  5. Step 5: Solve for x
    x = 455,534,606,798.27/878,564.61
  6. Step 6: Final answer
    x = 518,498.70

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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.