Home / 661,322.03-912,695.76-374,811.36

Finding the Fourth Proportional to 661,322.03, 912,695.76 and 374,811.36

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Solution

The fourth proportional to 661,322.03, 912,695.76 and 374,811.36 is: 517,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,322.03 : 912,695.76 = 374,811.36 : x
  2. Step 2: Convert to fraction form
    661,322.03/912,695.76 = 374,811.36/x
  3. Step 3: Cross multiply
    661,322.03x = 912,695.76 × 374,811.36
  4. Step 4: Simplify right side
    661,322.03x = 342,088,740,221.84
  5. Step 5: Solve for x
    x = 342,088,740,221.84/661,322.03
  6. Step 6: Final answer
    x = 517,280.12

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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.