Home / 910,427.40-1,365,641.10-311,408.10

Finding the Fourth Proportional to 910,427.40, 1,365,641.10 and 311,408.10

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Solution

The fourth proportional to 910,427.40, 1,365,641.10 and 311,408.10 is: 467,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,427.40 : 1,365,641.10 = 311,408.10 : x
  2. Step 2: Convert to fraction form
    910,427.40/1,365,641.10 = 311,408.10/x
  3. Step 3: Cross multiply
    910,427.40x = 1,365,641.10 × 311,408.10
  4. Step 4: Simplify right side
    910,427.40x = 425,271,700,232.91
  5. Step 5: Solve for x
    x = 425,271,700,232.91/910,427.40
  6. Step 6: Final answer
    x = 467,112.15

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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.