Home / 1,125,358.72-1,688,038.08-377,402.56

Finding the Fourth Proportional to 1,125,358.72, 1,688,038.08 and 377,402.56

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Solution

The fourth proportional to 1,125,358.72, 1,688,038.08 and 377,402.56 is: 566,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,358.72 : 1,688,038.08 = 377,402.56 : x
  2. Step 2: Convert to fraction form
    1,125,358.72/1,688,038.08 = 377,402.56/x
  3. Step 3: Cross multiply
    1,125,358.72x = 1,688,038.08 × 377,402.56
  4. Step 4: Simplify right side
    1,125,358.72x = 637,069,892,769.49
  5. Step 5: Solve for x
    x = 637,069,892,769.49/1,125,358.72
  6. Step 6: Final answer
    x = 566,103.84

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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.