Home / 742,220.69-1,023,588.29-627,739.34

Finding the Fourth Proportional to 742,220.69, 1,023,588.29 and 627,739.34

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Solution

The fourth proportional to 742,220.69, 1,023,588.29 and 627,739.34 is: 865,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,220.69 : 1,023,588.29 = 627,739.34 : x
  2. Step 2: Convert to fraction form
    742,220.69/1,023,588.29 = 627,739.34/x
  3. Step 3: Cross multiply
    742,220.69x = 1,023,588.29 × 627,739.34
  4. Step 4: Simplify right side
    742,220.69x = 642,546,634,047.74
  5. Step 5: Solve for x
    x = 642,546,634,047.74/742,220.69
  6. Step 6: Final answer
    x = 865,708.34

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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.