Home / 661,588.72-912,971.08-375,134.32

Finding the Fourth Proportional to 661,588.72, 912,971.08 and 375,134.32

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Solution

The fourth proportional to 661,588.72, 912,971.08 and 375,134.32 is: 517,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,588.72 : 912,971.08 = 375,134.32 : x
  2. Step 2: Convert to fraction form
    661,588.72/912,971.08 = 375,134.32/x
  3. Step 3: Cross multiply
    661,588.72x = 912,971.08 × 375,134.32
  4. Step 4: Simplify right side
    661,588.72x = 342,486,785,275.47
  5. Step 5: Solve for x
    x = 342,486,785,275.47/661,588.72
  6. Step 6: Final answer
    x = 517,673.25

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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.