Home / 814,223.60-1,221,335.40-562,281.20

Finding the Fourth Proportional to 814,223.60, 1,221,335.40 and 562,281.20

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Solution

The fourth proportional to 814,223.60, 1,221,335.40 and 562,281.20 is: 843,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,223.60 : 1,221,335.40 = 562,281.20 : x
  2. Step 2: Convert to fraction form
    814,223.60/1,221,335.40 = 562,281.20/x
  3. Step 3: Cross multiply
    814,223.60x = 1,221,335.40 × 562,281.20
  4. Step 4: Simplify right side
    814,223.60x = 686,733,934,314.48
  5. Step 5: Solve for x
    x = 686,733,934,314.48/814,223.60
  6. Step 6: Final answer
    x = 843,421.80

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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.