Home / 910,431.40-1,365,647.10-311,412.10

Finding the Fourth Proportional to 910,431.40, 1,365,647.10 and 311,412.10

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Solution

The fourth proportional to 910,431.40, 1,365,647.10 and 311,412.10 is: 467,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,431.40 : 1,365,647.10 = 311,412.10 : x
  2. Step 2: Convert to fraction form
    910,431.40/1,365,647.10 = 311,412.10/x
  3. Step 3: Cross multiply
    910,431.40x = 1,365,647.10 × 311,412.10
  4. Step 4: Simplify right side
    910,431.40x = 425,279,031,269.91
  5. Step 5: Solve for x
    x = 425,279,031,269.91/910,431.40
  6. Step 6: Final answer
    x = 467,118.15

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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.