Home / 1,125,362.72-1,688,044.08-377,406.56

Finding the Fourth Proportional to 1,125,362.72, 1,688,044.08 and 377,406.56

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Solution

The fourth proportional to 1,125,362.72, 1,688,044.08 and 377,406.56 is: 566,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,362.72 : 1,688,044.08 = 377,406.56 : x
  2. Step 2: Convert to fraction form
    1,125,362.72/1,688,044.08 = 377,406.56/x
  3. Step 3: Cross multiply
    1,125,362.72x = 1,688,044.08 × 377,406.56
  4. Step 4: Simplify right side
    1,125,362.72x = 637,078,909,361.17
  5. Step 5: Solve for x
    x = 637,078,909,361.17/1,125,362.72
  6. Step 6: Final answer
    x = 566,109.84

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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.