Home / 790,342.48-1,090,681.32-450,830.80

Finding the Fourth Proportional to 790,342.48, 1,090,681.32 and 450,830.80

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Solution

The fourth proportional to 790,342.48, 1,090,681.32 and 450,830.80 is: 622,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,342.48 : 1,090,681.32 = 450,830.80 : x
  2. Step 2: Convert to fraction form
    790,342.48/1,090,681.32 = 450,830.80/x
  3. Step 3: Cross multiply
    790,342.48x = 1,090,681.32 × 450,830.80
  4. Step 4: Simplify right side
    790,342.48x = 491,712,732,040.66
  5. Step 5: Solve for x
    x = 491,712,732,040.66/790,342.48
  6. Step 6: Final answer
    x = 622,151.47

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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.