Home / 875,728.58-1,208,541.30-553,321.04

Finding the Fourth Proportional to 875,728.58, 1,208,541.30 and 553,321.04

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Solution

The fourth proportional to 875,728.58, 1,208,541.30 and 553,321.04 is: 763,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,728.58 : 1,208,541.30 = 553,321.04 : x
  2. Step 2: Convert to fraction form
    875,728.58/1,208,541.30 = 553,321.04/x
  3. Step 3: Cross multiply
    875,728.58x = 1,208,541.30 × 553,321.04
  4. Step 4: Simplify right side
    875,728.58x = 668,711,328,998.95
  5. Step 5: Solve for x
    x = 668,711,328,998.95/875,728.58
  6. Step 6: Final answer
    x = 763,605.69

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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.