Home / 888,905.76-1,226,681.40-480,998.67

Finding the Fourth Proportional to 888,905.76, 1,226,681.40 and 480,998.67

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Solution

The fourth proportional to 888,905.76, 1,226,681.40 and 480,998.67 is: 663,773.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,905.76 : 1,226,681.40 = 480,998.67 : x
  2. Step 2: Convert to fraction form
    888,905.76/1,226,681.40 = 480,998.67/x
  3. Step 3: Cross multiply
    888,905.76x = 1,226,681.40 × 480,998.67
  4. Step 4: Simplify right side
    888,905.76x = 590,032,121,913.74
  5. Step 5: Solve for x
    x = 590,032,121,913.74/888,905.76
  6. Step 6: Final answer
    x = 663,773.54

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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.