Home / 1,221,587.64-1,685,206.35-731,222.55

Finding the Fourth Proportional to 1,221,587.64, 1,685,206.35 and 731,222.55

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Solution

The fourth proportional to 1,221,587.64, 1,685,206.35 and 731,222.55 is: 1,008,737.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,587.64 : 1,685,206.35 = 731,222.55 : x
  2. Step 2: Convert to fraction form
    1,221,587.64/1,685,206.35 = 731,222.55/x
  3. Step 3: Cross multiply
    1,221,587.64x = 1,685,206.35 × 731,222.55
  4. Step 4: Simplify right side
    1,221,587.64x = 1,232,260,884,523.19
  5. Step 5: Solve for x
    x = 1,232,260,884,523.19/1,221,587.64
  6. Step 6: Final answer
    x = 1,008,737.19

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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.