Home / 875,178.80-1,207,971.44-570,015.60

Finding the Fourth Proportional to 875,178.80, 1,207,971.44 and 570,015.60

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Solution

The fourth proportional to 875,178.80, 1,207,971.44 and 570,015.60 is: 786,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,178.80 : 1,207,971.44 = 570,015.60 : x
  2. Step 2: Convert to fraction form
    875,178.80/1,207,971.44 = 570,015.60/x
  3. Step 3: Cross multiply
    875,178.80x = 1,207,971.44 × 570,015.60
  4. Step 4: Simplify right side
    875,178.80x = 688,562,565,154.46
  5. Step 5: Solve for x
    x = 688,562,565,154.46/875,178.80
  6. Step 6: Final answer
    x = 786,767.88

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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.