Home / 838,332.72-1,257,502.32-439,091.28

Finding the Fourth Proportional to 838,332.72, 1,257,502.32 and 439,091.28

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Solution

The fourth proportional to 838,332.72, 1,257,502.32 and 439,091.28 is: 658,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,332.72 : 1,257,502.32 = 439,091.28 : x
  2. Step 2: Convert to fraction form
    838,332.72/1,257,502.32 = 439,091.28/x
  3. Step 3: Cross multiply
    838,332.72x = 1,257,502.32 × 439,091.28
  4. Step 4: Simplify right side
    838,332.72x = 552,158,303,291.77
  5. Step 5: Solve for x
    x = 552,158,303,291.77/838,332.72
  6. Step 6: Final answer
    x = 658,638.62

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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.