Home / 815,526.25-1,125,426.23-457,830.25

Finding the Fourth Proportional to 815,526.25, 1,125,426.23 and 457,830.25

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Solution

The fourth proportional to 815,526.25, 1,125,426.23 and 457,830.25 is: 631,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,526.25 : 1,125,426.23 = 457,830.25 : x
  2. Step 2: Convert to fraction form
    815,526.25/1,125,426.23 = 457,830.25/x
  3. Step 3: Cross multiply
    815,526.25x = 1,125,426.23 × 457,830.25
  4. Step 4: Simplify right side
    815,526.25x = 515,254,172,237.46
  5. Step 5: Solve for x
    x = 515,254,172,237.46/815,526.25
  6. Step 6: Final answer
    x = 631,805.75

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Double scale
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Similar ratio
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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.