Home / 815,387.67-1,125,268.95-452,814.51

Finding the Fourth Proportional to 815,387.67, 1,125,268.95 and 452,814.51

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Solution

The fourth proportional to 815,387.67, 1,125,268.95 and 452,814.51 is: 624,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,387.67 : 1,125,268.95 = 452,814.51 : x
  2. Step 2: Convert to fraction form
    815,387.67/1,125,268.95 = 452,814.51/x
  3. Step 3: Cross multiply
    815,387.67x = 1,125,268.95 × 452,814.51
  4. Step 4: Simplify right side
    815,387.67x = 509,538,108,212.47
  5. Step 5: Solve for x
    x = 509,538,108,212.47/815,387.67
  6. Step 6: Final answer
    x = 624,902.89

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Double scale
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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.