Home / 671,703.40-1,008,332.70-387,620.20

Finding the Fourth Proportional to 671,703.40, 1,008,332.70 and 387,620.20

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Solution

The fourth proportional to 671,703.40, 1,008,332.70 and 387,620.20 is: 581,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,703.40 : 1,008,332.70 = 387,620.20 : x
  2. Step 2: Convert to fraction form
    671,703.40/1,008,332.70 = 387,620.20/x
  3. Step 3: Cross multiply
    671,703.40x = 1,008,332.70 × 387,620.20
  4. Step 4: Simplify right side
    671,703.40x = 390,850,122,840.54
  5. Step 5: Solve for x
    x = 390,850,122,840.54/671,703.40
  6. Step 6: Final answer
    x = 581,879.03

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1.5x scale

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.