Home / 826,214.97-1,238,325.83-426,637.92

Finding the Fourth Proportional to 826,214.97, 1,238,325.83 and 426,637.92

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Solution

The fourth proportional to 826,214.97, 1,238,325.83 and 426,637.92 is: 639,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,214.97 : 1,238,325.83 = 426,637.92 : x
  2. Step 2: Convert to fraction form
    826,214.97/1,238,325.83 = 426,637.92/x
  3. Step 3: Cross multiply
    826,214.97x = 1,238,325.83 × 426,637.92
  4. Step 4: Simplify right side
    826,214.97x = 528,316,756,393.47
  5. Step 5: Solve for x
    x = 528,316,756,393.47/826,214.97
  6. Step 6: Final answer
    x = 639,442.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.