Home / 742,279.35-1,024,357.41-402,747.60

Finding the Fourth Proportional to 742,279.35, 1,024,357.41 and 402,747.60

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Solution

The fourth proportional to 742,279.35, 1,024,357.41 and 402,747.60 is: 555,798.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,279.35 : 1,024,357.41 = 402,747.60 : x
  2. Step 2: Convert to fraction form
    742,279.35/1,024,357.41 = 402,747.60/x
  3. Step 3: Cross multiply
    742,279.35x = 1,024,357.41 × 402,747.60
  4. Step 4: Simplify right side
    742,279.35x = 412,557,488,419.72
  5. Step 5: Solve for x
    x = 412,557,488,419.72/742,279.35
  6. Step 6: Final answer
    x = 555,798.15

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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.