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Finding the Fourth Proportional to 675,669.78, 932,360.81 and 457,434.51

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Solution

The fourth proportional to 675,669.78, 932,360.81 and 457,434.51 is: 631,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,669.78 : 932,360.81 = 457,434.51 : x
  2. Step 2: Convert to fraction form
    675,669.78/932,360.81 = 457,434.51/x
  3. Step 3: Cross multiply
    675,669.78x = 932,360.81 × 457,434.51
  4. Step 4: Simplify right side
    675,669.78x = 426,494,016,851.69
  5. Step 5: Solve for x
    x = 426,494,016,851.69/675,669.78
  6. Step 6: Final answer
    x = 631,216.66

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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.