Home / 830,811.69-1,146,521.76-482,019.87

Finding the Fourth Proportional to 830,811.69, 1,146,521.76 and 482,019.87

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Solution

The fourth proportional to 830,811.69, 1,146,521.76 and 482,019.87 is: 665,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,811.69 : 1,146,521.76 = 482,019.87 : x
  2. Step 2: Convert to fraction form
    830,811.69/1,146,521.76 = 482,019.87/x
  3. Step 3: Cross multiply
    830,811.69x = 1,146,521.76 × 482,019.87
  4. Step 4: Simplify right side
    830,811.69x = 552,646,269,707.37
  5. Step 5: Solve for x
    x = 552,646,269,707.37/830,811.69
  6. Step 6: Final answer
    x = 665,188.37

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1.5x scale

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.