Home / 851,279.36-1,174,774.61-469,319.81

Finding the Fourth Proportional to 851,279.36, 1,174,774.61 and 469,319.81

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Solution

The fourth proportional to 851,279.36, 1,174,774.61 and 469,319.81 is: 647,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,279.36 : 1,174,774.61 = 469,319.81 : x
  2. Step 2: Convert to fraction form
    851,279.36/1,174,774.61 = 469,319.81/x
  3. Step 3: Cross multiply
    851,279.36x = 1,174,774.61 × 469,319.81
  4. Step 4: Simplify right side
    851,279.36x = 551,344,994,411.43
  5. Step 5: Solve for x
    x = 551,344,994,411.43/851,279.36
  6. Step 6: Final answer
    x = 647,666.35

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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.