Home / 742,506.78-1,024,659.77-402,975.03

Finding the Fourth Proportional to 742,506.78, 1,024,659.77 and 402,975.03

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Solution

The fourth proportional to 742,506.78, 1,024,659.77 and 402,975.03 is: 556,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,506.78 : 1,024,659.77 = 402,975.03 : x
  2. Step 2: Convert to fraction form
    742,506.78/1,024,659.77 = 402,975.03/x
  3. Step 3: Cross multiply
    742,506.78x = 1,024,659.77 × 402,975.03
  4. Step 4: Simplify right side
    742,506.78x = 412,912,300,001.33
  5. Step 5: Solve for x
    x = 412,912,300,001.33/742,506.78
  6. Step 6: Final answer
    x = 556,105.77

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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.