Home / 875,279.36-1,207,888.80-553,132.64

Finding the Fourth Proportional to 875,279.36, 1,207,888.80 and 553,132.64

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Solution

The fourth proportional to 875,279.36, 1,207,888.80 and 553,132.64 is: 763,325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,279.36 : 1,207,888.80 = 553,132.64 : x
  2. Step 2: Convert to fraction form
    875,279.36/1,207,888.80 = 553,132.64/x
  3. Step 3: Cross multiply
    875,279.36x = 1,207,888.80 × 553,132.64
  4. Step 4: Simplify right side
    875,279.36x = 668,122,720,770.43
  5. Step 5: Solve for x
    x = 668,122,720,770.43/875,279.36
  6. Step 6: Final answer
    x = 763,325.12

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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.