Home / 685,764.40-1,028,646.60-242,532.40

Finding the Fourth Proportional to 685,764.40, 1,028,646.60 and 242,532.40

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Solution

The fourth proportional to 685,764.40, 1,028,646.60 and 242,532.40 is: 363,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,764.40 : 1,028,646.60 = 242,532.40 : x
  2. Step 2: Convert to fraction form
    685,764.40/1,028,646.60 = 242,532.40/x
  3. Step 3: Cross multiply
    685,764.40x = 1,028,646.60 × 242,532.40
  4. Step 4: Simplify right side
    685,764.40x = 249,480,128,649.84
  5. Step 5: Solve for x
    x = 249,480,128,649.84/685,764.40
  6. Step 6: Final answer
    x = 363,798.60

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Double scale
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Similar ratio
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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.