Home / 661,282.38-912,669.30-403,308.99

Finding the Fourth Proportional to 661,282.38, 912,669.30 and 403,308.99

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Solution

The fourth proportional to 661,282.38, 912,669.30 and 403,308.99 is: 556,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,282.38 : 912,669.30 = 403,308.99 : x
  2. Step 2: Convert to fraction form
    661,282.38/912,669.30 = 403,308.99/x
  3. Step 3: Cross multiply
    661,282.38x = 912,669.30 × 403,308.99
  4. Step 4: Simplify right side
    661,282.38x = 368,087,733,587.01
  5. Step 5: Solve for x
    x = 368,087,733,587.01/661,282.38
  6. Step 6: Final answer
    x = 556,627.16

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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.