Home / 742,072.46-1,024,060.32-419,775.68

Finding the Fourth Proportional to 742,072.46, 1,024,060.32 and 419,775.68

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Solution

The fourth proportional to 742,072.46, 1,024,060.32 and 419,775.68 is: 579,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,072.46 : 1,024,060.32 = 419,775.68 : x
  2. Step 2: Convert to fraction form
    742,072.46/1,024,060.32 = 419,775.68/x
  3. Step 3: Cross multiply
    742,072.46x = 1,024,060.32 × 419,775.68
  4. Step 4: Simplify right side
    742,072.46x = 429,875,619,749.17
  5. Step 5: Solve for x
    x = 429,875,619,749.17/742,072.46
  6. Step 6: Final answer
    x = 579,290.63

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Double scale
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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.