Home / 815,300.76-1,125,077.47-452,747.80

Finding the Fourth Proportional to 815,300.76, 1,125,077.47 and 452,747.80

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Solution

The fourth proportional to 815,300.76, 1,125,077.47 and 452,747.80 is: 624,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,300.76 : 1,125,077.47 = 452,747.80 : x
  2. Step 2: Convert to fraction form
    815,300.76/1,125,077.47 = 452,747.80/x
  3. Step 3: Cross multiply
    815,300.76x = 1,125,077.47 × 452,747.80
  4. Step 4: Simplify right side
    815,300.76x = 509,376,349,372.07
  5. Step 5: Solve for x
    x = 509,376,349,372.07/815,300.76
  6. Step 6: Final answer
    x = 624,771.10

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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.