Home / 815,782.40-1,223,562.88-239,390.35

Finding the Fourth Proportional to 815,782.40, 1,223,562.88 and 239,390.35

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Solution

The fourth proportional to 815,782.40, 1,223,562.88 and 239,390.35 is: 359,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,782.40 : 1,223,562.88 = 239,390.35 : x
  2. Step 2: Convert to fraction form
    815,782.40/1,223,562.88 = 239,390.35/x
  3. Step 3: Cross multiply
    815,782.40x = 1,223,562.88 × 239,390.35
  4. Step 4: Simplify right side
    815,782.40x = 292,909,146,090.21
  5. Step 5: Solve for x
    x = 292,909,146,090.21/815,782.40
  6. Step 6: Final answer
    x = 359,053.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.