Home / 815,670.48-1,125,588.78-453,119.52

Finding the Fourth Proportional to 815,670.48, 1,125,588.78 and 453,119.52

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Solution

The fourth proportional to 815,670.48, 1,125,588.78 and 453,119.52 is: 625,284.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,670.48 : 1,125,588.78 = 453,119.52 : x
  2. Step 2: Convert to fraction form
    815,670.48/1,125,588.78 = 453,119.52/x
  3. Step 3: Cross multiply
    815,670.48x = 1,125,588.78 × 453,119.52
  4. Step 4: Simplify right side
    815,670.48x = 510,026,247,710.99
  5. Step 5: Solve for x
    x = 510,026,247,710.99/815,670.48
  6. Step 6: Final answer
    x = 625,284.67

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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.